Semantic Analysis

Semantic Analysis — 1 John (Original Koine Greek) → Czech

Methodology and Scope

This analysis covers 1 John in its entirety, chapter 1 through chapter 5, following the PRD Phase 1 Step 1 mandate for full-book coverage. The core passage, 1 John 4:7–21, receives verse-by-verse treatment of every load-bearing term. Every other chapter receives a chapter-level treatment of its load-bearing theological terms with the same analytic fields: original word, transliteration, literal meaning, semantic range, English variants, contextual theological meaning, destination-language (Czech) rendering risk.

Per the hard rule governing this pipeline, any term already established in the baseline Romans Language Package (translation_memory.json / bible_term_registry.json) is reused exactly and is marked “[BASELINE — reused]” below rather than re-derived. New terms specific to 1 John’s vocabulary are analyzed fresh and assigned a risk tier using the same Critical/High/Medium/Low framework as the baseline, informed by the same governing insight: for Czech, the dominant risk is usually the absence of any inherited conceptual framework, not a competing rival theology — except in a small number of specific, flagged cases (e.g., “idols,” “Antichrist,” “sin unto death”) where a genuine secular-pop-culture or residual folk-Catholic collision does exist and is called out explicitly.

1 John is unusually term-dense for its length: its argument turns on a small set of repeated, tightly interlocking words (ἀγάπη/love, φῶς/light, μένω/abide, γεννάω/born, κόσμος/world, πνεῦμα/spirit, ζωὴ αἰώνιος/eternal life). These repetitions are themselves theologically significant and must be rendered with maximum lexical consistency in Czech — inconsistent Czech vocabulary for a repeated Greek term would obscure the letter’s argumentative structure more severely than in more narrative books.

PART A — Core Passage: 1 John 4:7–21 (Verse-by-Verse)

4:7 — Ἀγαπητοί, ἀγαπῶμεν ἀλλήλους, ὅτι ἡ ἀγάπη ἐκ τοῦ θεοῦ ἐστιν, καὶ πᾶς ὁ ἀγαπῶν ἐκ τοῦ θεοῦ γεγέννηται καὶ γινώσκει τὸν θεόν.

ἀγάπη / ἀγαπῶμεν (agapē / agapōmen) — “love” (noun) / “let us love” (verb, hortatory subjunctive). Literal meaning: self-giving, willed love, distinguished in Koine usage from ἔρως (romantic/sexual desire) and φιλία (affectionate friendship). Semantic range: in the NT, ἀγάπη is regularly used for God’s own character and for the love he requires among believers; rarely used for ordinary affection in secular Koine. English variants: “love,” “charity” (KJV). Contextual theological meaning: love is presented as originating in God (“ἐκ τοῦ θεοῦ,” “from/out of God”) — not a human virtue achieved but a divine reality that becomes evident in believers. Czech rendering: láska. Risk: Critical. “Láska” is the single ordinary Czech word for love in every register — romantic, familial, sentimental, even brand-slogan usage — with no lexical distinction available (Czech does not have separate common words paralleling ἀγάπη/ἔρως/φιλία). Because this term is the thesis word of the entire book and of the core passage, and because a secular reader’s overwhelming first association will be romantic-sentimental love from pop culture, this is the single highest-stakes rendering decision in the whole curriculum. It must be actively and repeatedly distinguished from romantic love throughout, not merely translated once.
γεγέννηται (gegennētai, from γεννάω) — “has been born/begotten.” Literal meaning: physical begetting/birth, applied metaphorically to spiritual origin. Semantic range: birth, procreation, family origin. English variants: “born,” “begotten.” Contextual theological meaning: the one who loves is evidence of already having been begotten by God — love is the fruit of new birth, not its cause. Czech rendering: je zrozen z Boha / narodil se z Boha. Risk: Critical. See full discussion under Chapter 3 below (doctrine: “Love for the Brethren as Evidence of New Birth”); this is the recurring theological backbone term of the letter.
γινώσκει (ginōskei, from γινώσκω) — “knows.” Literal meaning: to know by experience/relationship, not merely intellectually. Semantic range: relational, experiential knowledge (cf. Hebrew yada), distinct from οἶδα (know as fact). English variants: “knows,” “has come to know.” Contextual theological meaning: to know God is to be in relational communion with him, evidenced by love. Czech rendering: zná (Boha). Risk: Medium. Ordinary Czech “znát” covers both factual acquaintance and relational knowledge, so the word itself is not misleading, but the relational/experiential sense (knowing God as one knows a person, not a fact) needs explicit teaching for a reader with no devotional framework.

4:8 — ὁ μὴ ἀγαπῶν οὐκ ἔγνω τὸν θεόν, ὅτι ὁ θεὸς ἀγάπη ἐστίν.

ὁ θεὸς ἀγάπη ἐστίν (“God is love”) — this clause, not a single lexical item, is itself the load-bearing unit: a copulative identity statement (God = love), not merely “God loves” or “God is loving.” Contextual theological meaning: this is one of only two “God is ___” predications in the NT (the other being 1:5, “God is light” — see below), asserting love as intrinsic to God’s essence, not an occasional activity. Czech rendering: Bůh je láska. Risk: Critical. The grammatical structure (nominative predicate, no article on ἀγάπη) is deliberately identity-asserting in Greek. Czech “Bůh je láska” is grammatically capable of carrying this force, but a secular reader accustomed to hearing “love” used loosely (as a greeting-card sentiment, “all you need is love”) risks flattening this into a vague, feel-good abstraction rather than receiving it as a precise claim about God’s very nature that then grounds a demanding ethical claim (4:11, 20-21). Must be taught, not merely quoted.

4:9 — ἐν τούτῳ ἐφανερώθη ἡ ἀγάπη τοῦ θεοῦ ἐν ἡμῖν, ὅτι τὸν υἱὸν αὐτοῦ τὸν μονογενῆ ἀπέσταλκεν ὁ θεὸς εἰς τὸν κόσμον, ἵνα ζήσωμεν διʼ αὐτοῦ.

ἐφανερώθη (ephanerōthē, from φανερόω) — “was manifested/made visible.” Literal meaning: to make visible or evident something previously hidden. Semantic range: revelation, disclosure, public demonstration. English variants: “manifested,” “shown,” “revealed.” Contextual theological meaning: God’s love is not an abstract claim but a historically enacted, observable event (the sending of the Son). Czech rendering: byla zjevena / se ukázala. Risk: Medium. “Zjevit” carries mild residual religious-literary weight in Czech (cf. “zjevení,” Revelation/Apocalypse) that can be leveraged positively, but needs pairing with concrete narrative content (what was actually shown) rather than left abstract.
τὸν υἱὸν αὐτοῦ τὸν μονογενῆ (ton huion autou ton monogenē) — “his only/unique Son.” μονογενής literal meaning: one-of-a-kind, only one of its kind (from μόνος “only” + γένος “kind/offspring”) — not merely “firstborn” (πρωτότοκος) but “unique, without peer.” Semantic range: uniqueness, not simply chronological priority. English variants: “only begotten” (KJV, following the Vulgate’s unigenitus), “only,” “one and only.” Contextual theological meaning: continues the “Son of God” ([BASELINE — reused: Syn Boží]) doctrine of unique, eternal Sonship, here stressing exclusivity — there is no other. Czech rendering: jediný (Syn). Risk: Critical. The Kralice-tradition “jednorozený” is available but reads as archaic to a contemporary secular ear and risks being processed as an unfamiliar fossil word; the modern ČEP-style “jediný” (only/unique) is preferred for accessibility while still requiring an explanatory gloss distinguishing this Sonship from the “children of God” sonship applied to believers by adoption (see 3:1-2 below) — a distinction Czech readers with no prior Trinitarian framework will not supply on their own.
κόσμον (kosmon, from κόσμος) — “world.” See full discussion under Chapter 2 below; here used in its more neutral sense of “the created human world, the object of God’s saving love” (cf. John 3:16), contrasted with 1 John’s other, more negative uses of κόσμος as the God-opposing world-system (2:15-17; 5:19). Czech rendering: svět. Risk: High. Context-sensitivity must be actively signaled in teaching material, since the same Czech word will otherwise carry both senses without disambiguation.
ζήσωμεν (zēsōmen, from ζάω) — “we might live.” Connects to ζωὴ αἰώνιος (“eternal life”), the letter’s climactic assurance term (5:11-13). Czech rendering: abychom žili. Risk: Medium in this instance (ordinary verb “žít”); see “eternal life” entry under Chapter 5 for the full risk profile of the nominal form.

4:10 — ἐν τούτῳ ἐστὶν ἡ ἀγάπη, οὐχ ὅτι ἡμεῖς ἠγαπήκαμεν τὸν θεόν, ἀλλʼ ὅτι αὐτὸς ἠγάπησεν ἡμᾶς καὶ ἀπέστειλεν τὸν υἱὸν αὐτοῦ ἱλασμὸν περὶ τῶν ἁμαρτιῶν ἡμῶν.

ἱλασμόν (hilasmon, accusative of ἱλασμός) — “propitiation / atoning sacrifice.” Literal meaning: that which turns away wrath / that which makes atonement; from the same root family as ἱλάσκομαι (to propitiate, to be merciful) and cognate with ἱλαστήριον (Romans 3:25, “mercy seat”/“place of atonement”). Semantic range: in Greek sacrificial and cultic vocabulary, a means by which an offended party’s wrath is satisfied and reconciliation made possible; in the LXX, used for the sacrificial system that dealt with sin before God. English variants: “propitiation” (KJV/ESV), “atoning sacrifice” (NIV), “expiation.” Contextual theological meaning: Christ himself (not merely his death in the abstract) is presented as the very means by which God’s righteous response to sin is satisfied — this is the doctrinal core of “Confession and Forgiveness of Sin” and connects directly to the letter’s opening claim (1:7, 9; 2:2) that Christ’s blood cleanses and forgives. Czech rendering: oběť smíření (ČEP’s established rendering; cf. 1 John 2:2). Risk: Critical. There is no ordinary secular Czech usage of “oběť smíření” at all — unlike “milost” or “spasení,” this phrase carries essentially zero pre-existing content, positive or negative, for a general reader. It must be built up from the ground up using the Old Testament sacrificial background (which cannot be assumed as prior knowledge) and anchored concretely to Christ’s death, exactly as the baseline’s “přičtená spravedlnost” (imputed righteousness) was flagged as needing ground-up construction rather than assumed resonance.

4:11 — Ἀγαπητοί, εἰ οὕτως ὁ θεὸς ἠγάπησεν ἡμᾶς, καὶ ἡμεῖς ὀφείλομεν ἀλλήλους ἀγαπᾶν.

ὀφείλομεν (opheilomen, from ὀφείλω) — “we owe / we are obligated.” Literal meaning: to owe a debt (financial or moral). Semantic range: financial debt, moral obligation, duty. English variants: “ought,” “are bound,” “owe it.” Contextual theological meaning: love for one another is not optional sentiment but a binding obligation flowing directly from having received God’s love — an indicative-then-imperative structure typical of NT ethics. Czech rendering: máme povinnost / jsme povinni. Risk: Medium. Ordinary Czech financial/legal usage (“dlužíme,” “jsme povinni”) is available and actually helps here, since the debt-metaphor is precisely what the Greek intends; the risk is under-teaching the logical connective (“if… then we too ought”) rather than the vocabulary itself.

4:12 — θεὸν οὐδεὶς πώποτε τεθέαται· ἐὰν ἀγαπῶμεν ἀλλήλους, ὁ θεὸς ἐν ἡμῖν μένει καὶ ἡ ἀγάπη αὐτοῦ ἐν ἡμῖν τετελειωμένη ἐστίν.

τεθέαται (tetheatai, from θεάομαι) — “has seen/beheld.” Literal meaning: to gaze upon, behold attentively (root of English “theater/theory”). Semantic range: visual perception, often with the sense of careful or wondering observation. Contextual theological meaning: God is invisible; mutual love among believers is the visible substitute-evidence of God’s invisible presence. Czech rendering: nikdo nikdy neviděl (Boha). Risk: Low. Standard vocabulary.
μένει (menei, from μένω) — “abides/remains.” See full discussion under Chapter 2/3 below (μένω is one of 1 John’s key recurring verbs, alongside γινώσκω and ἀγαπάω). Czech rendering: zůstává. Risk: Medium.
τετελειωμένη (teteleiōmenē, perfect passive participle of τελειόω) — “has been perfected / brought to completion.” Literal meaning: to bring to its intended goal or end-state (τέλος), not “made flawless” in a moralistic sense. Semantic range: completion, maturity, reaching one’s designed purpose. English variants: “perfected,” “made complete,” “matured.” Contextual theological meaning: love reaches its intended goal/purpose specifically in being shared among believers — God’s love is not complete in abstract reception only but in its outworking. Czech rendering: naplněná / dokonalá (context-dependent; “je v nás dokonalá” or “dosahuje naplnění”). Risk: Medium. Czech “dokonalý” carries a strong everyday sense of “flawless/perfect” (a perfect performance, a perfect score) that risks being misread as moral perfectionism (i.e., “you must love flawlessly to prove it”) rather than the Greek’s telic sense of reaching a goal; a brief gloss distinguishing “reaching its purpose” from “being flawless” is needed on first use, paralleling 4:17-18 below.

4:13 — Ἐν τούτῳ γινώσκομεν ὅτι ἐν αὐτῷ μένομεν καὶ αὐτὸς ἐν ἡμῖν, ὅτι ἐκ τοῦ πνεύματος αὐτοῦ δέδωκεν ἡμῖν.

πνεύματος (pneumatos, genitive of πνεῦμα) — “Spirit.” [BASELINE — reused: Duch svatý, Critical]. Here in the phrase “ἐκ τοῦ πνεύματος αὐτοῦ” (of his Spirit), confirming mutual indwelling (God in us, we in God) through the Spirit’s gift. Czech rendering: Duch svatý (or “jeho Duch” contextually). Risk: Critical (inherited from baseline; additionally see the ch.4:1-6 discussion below on πνεῦμα’s context-sensitivity in “testing the spirits”).

4:14 — καὶ ἡμεῖς τεθεάμεθα καὶ μαρτυροῦμεν ὅτι ὁ πατὴρ ἀπέσταλκεν τὸν υἱὸν σωτῆρα τοῦ κόσμου.

μαρτυροῦμεν (martyroumen, from μαρτυρέω) — “we testify/bear witness.” Literal meaning: to give testimony, originally in a legal/courtroom setting. Semantic range: eyewitness legal testimony; by NT usage extended to confident proclamation of what one has personally seen/experienced. English variants: “testify,” “bear witness,” “witness.” Contextual theological meaning: apostolic eyewitness authority undergirds the letter’s claims (cf. 1:1-3) — this is not secondhand report but firsthand testimony. Czech rendering: svědčíme. Risk: Medium. Ordinary Czech “svědčit” is the everyday word for legal courtroom testimony (a witness in a trial), which is actually a helpful parallel here (it preserves the juridical force of the Greek) but needs the gloss that this is testimony about a historical, witnessed event (the sending and identity of the Son), not merely a personal opinion or feeling.
σωτῆρα (sōtēra, accusative of σωτήρ) — “Savior.” Literal meaning: one who saves/rescues/delivers from danger. Semantic range: in the wider Greco-Roman world, a title given to healing gods, emperors, and benefactors as “savior/deliverer/benefactor”; in the NT, reserved for God and Christ’s unique saving work. English variants: “Savior,” “Deliverer.” Contextual theological meaning: connects directly to the letter’s implicit doctrine of salvation and to the baseline’s flagged “spasení” ([BASELINE-adjacent]). Czech rendering: Spasitel. Risk: Critical. “Spasitel” shares the exact same risk profile the baseline documented for “spasení”: a genuine, stable Kralice/ČEP-tradition term that risks registering as archaic and literary — a title from an old story — rather than a living designation with present conceptual content, for a reader in one of Europe’s most secular societies. Must be paired every time with concrete narrative content (saved from what, to what, by whom) exactly as the baseline instructs for “spasení.”

4:15 — ὃς ἂν ὁμολογήσῃ ὅτι Ἰησοῦς ἐστιν ὁ υἱὸς τοῦ θεοῦ, ὁ θεὸς ἐν αὐτῷ μένει καὶ αὐτὸς ἐν τῷ θεῷ.

ὁμολογήσῃ (homologēsē, from ὁμολογέω) — “confesses.” Literal meaning: to say the same thing (ὁμός “same” + λέγω “say/speak”) — i.e., to agree with, to affirm publicly what is objectively true. Semantic range: public acknowledgment, agreement, admission (of a fact, a debt, a belief); in a forensic/legal context, “to admit” (e.g., a legal confession). English variants: “confess,” “acknowledge,” “declare.” Contextual theological meaning: a public, verbal affirmation that Jesus is the Son of God is the confessional boundary marker of authentic faith throughout the letter (cf. 4:2-3; Romans 10:9’s “Ježíš je Pán,” [BASELINE — parallel structure]). Czech rendering: vyznat / vyznává. Risk: High. Standard ČEP/Kralice term, but ordinary Czech “vyznat se (v něčem)” is a common idiom meaning “to know one’s way around / be knowledgeable about” a subject (e.g., “vyznám se v počítačích,” “I know my way around computers”) — a colloquial drift that could flatten the confessional, allegiance-declaring force of ὁμολογέω into mere familiarity or opinion. Must be actively taught as a public declaration of allegiance/belief, paralleling the baseline’s treatment of Romans 10:9.
ὁ υἱὸς τοῦ θεοῦ (ho huios tou theou) — “the Son of God.” [BASELINE — reused: Syn Boží, Critical].

4:16 — καὶ ἡμεῖς ἐγνώκαμεν καὶ πεπιστεύκαμεν τὴν ἀγάπην ἣν ἔχει ὁ θεὸς ἐν ἡμῖν. Ὁ θεὸς ἀγάπη ἐστίν, καὶ ὁ μένων ἐν τῇ ἀγάπῃ ἐν τῷ θεῷ μένει καὶ ὁ θεὸς ἐν αὐτῷ μένει.

πεπιστεύκαμεν (pepisteukamen, from πιστεύω) — “we have believed.” Connects to the baseline’s [BASELINE — reused: víra/faith, High] term family. Czech rendering: uvěřili jsme. Risk: High (inherited).
ὁ θεὸς ἀγάπη ἐστίν — repetition of 4:8’s identity statement, reinforcing it as the letter’s structural thesis. See 4:8 above for full risk discussion.
μένων / μένει — third and fourth occurrences of μένω in this short span (also 4:12-13), confirming this verb’s structural importance to the passage’s “mutual indwelling” argument. Czech rendering: zůstávat. Risk: Medium — see consolidated discussion under Chapter 2.

4:17 — Ἐν τούτῳ τετελείωται ἡ ἀγάπη μεθʼ ἡμῶν, ἵνα παρρησίαν ἔχωμεν ἐν τῇ ἡμέρᾳ τῆς κρίσεως, ὅτι καθὼς ἐκεῖνός ἐστιν καὶ ἡμεῖς ἐσμεν ἐν τῷ κόσμῳ τούτῳ.

παρρησίαν (parrēsian, accusative of παρρησία) — “boldness/confidence/openness.” Literal meaning: freedom of speech, frankness (πᾶν “all” + ῥῆσις “speech”) — originally a political/civic term for the right of a free citizen to speak openly in the assembly. Semantic range: unrestricted, fearless speech; by extension, confident, unashamed standing/access before someone in authority. English variants: “boldness,” “confidence,” “assurance.” Contextual theological meaning: believers may approach the final judgment without terror, on the basis of God’s perfected love, not their own performance — directly grounding the doctrine of “Assurance of Salvation and Eternal Life.” Czech rendering: důvěra (or “smělá jistota” for emphasis). Risk: High. Ordinary Czech “důvěra” (trust/confidence) is a comfortable, low-charge secular word (trust in a friend, confidence in a plan) that does not by itself convey the specific, high-stakes forensic setting (standing confidently before the Judge on the day of judgment); this must be actively built up as the concrete content of “assurance of salvation,” not left as generic positive feeling — this is precisely the pattern the baseline flags for “peace” (pokoj) and “grace” (milost): a stable, comfortable word carrying too little of the specific doctrinal weight on its own.
κρίσεως (kriseōs, genitive of κρίσις) — “judgment.” Literal meaning: a decision, a legal verdict; the process or event of judging. Semantic range: legal/judicial verdict, discernment, crisis-point of decision. English variants: “judgment,” “the Judgment” (final judgment). Contextual theological meaning: a specific future eschatological event (final judgment before God), not a general sense of “criticism” or “evaluation.” Czech rendering: den soudu. Risk: Medium. “Soud” is the ordinary Czech word for a civil/criminal court; this secular judicial resonance is actually theologically useful here (final judgment is genuinely forensic) but needs the eschatological horizon (a specific future divine event, not an ongoing worldly legal process) made explicit.

4:18 — φόβος οὐκ ἔστιν ἐν τῇ ἀγάπῃ, ἀλλʼ ἡ τελεία ἀγάπη ἔξω βάλλει τὸν φόβον, ὅτι ὁ φόβος κόλασιν ἔχει, ὁ δὲ φοβούμενος οὐ τετελείωται ἐν τῇ ἀγάπῃ.

φόβος (phobos) — “fear.” Literal meaning: fear, dread, terror. Semantic range: from ordinary fright to reverential awe (the range covered by English “fear of God”); here clearly the negative, tormenting sense, not reverent awe. English variants: “fear,” “dread,” “terror.” Contextual theological meaning: the specific fear in view is dread of condemnation/punishment before God, which mature love displaces — not the removal of all healthy reverence. Czech rendering: strach. Risk: Medium. Ordinary, low-charge Czech word; the risk is not the word itself but ensuring the reader does not conflate this “fear of punishment” with the wholly different biblical sense of reverential “fear of the Lord” (which 1 John does not use here), a distinction worth a brief clarifying note.
τελεία ἀγάπη (teleia agapē) — “perfect/mature love,” adjectival cognate of τελειόω (4:12 above). Czech rendering: dokonalá láska. Risk: Medium — same note on “reaching its goal” vs. “flawless” as at 4:12.
κόλασιν (kolasin, accusative of κόλασις) — “punishment/torment.” Literal meaning: originally horticultural (pruning/restraining), extended to punishment, especially penal torment. Semantic range: punishment, chastisement, torment. English variants: “punishment,” “torment.” Contextual theological meaning: the anticipated penalty for standing condemned before God, which perfected love removes the dread of. Czech rendering: trest. Risk: Low. Standard, unambiguous.

4:19 — ἡμεῖς ἀγαπῶμεν, ὅτι αὐτὸς πρῶτος ἠγάπησεν ἡμᾶς.

No new load-bearing terms beyond ἀγαπάω (see 4:7 above). Contextual theological meaning: the ordering is decisive — divine initiative always precedes and grounds human response; love is reactive gratitude, never a human achievement that earns God’s favor. This grammatical ordering (“he first…”) should be preserved intact in Czech word order where natural (“my milujeme, protože on první miloval nás”), since the sequence itself carries doctrinal weight (cf. baseline’s grace-priority notes on Romans 4-5).

4:20 — ἐάν τις εἴπῃ ὅτι ἀγαπῶ τὸν θεόν, καὶ τὸν ἀδελφὸν αὐτοῦ μισῇ, ψεύστης ἐστίν· ὁ γὰρ μὴ ἀγαπῶν τὸν ἀδελφὸν αὐτοῦ ὃν ἑώρακεν, τὸν θεὸν ὃν οὐχ ἑώρακεν οὐ δύναται ἀγαπᾶν.

ψεύστης (pseustēs) — “liar.” Literal meaning: one who speaks falsehood habitually/characteristically (a noun of characteristic, stronger than “one who told a lie”). Semantic range: a habitual or characteristic liar, someone whose speech is fundamentally untrustworthy — a strong, blunt term, one of 1 John’s favorite polemical labels (cf. 1:10; 2:4, 22). English variants: “liar,” “a liar.” Contextual theological meaning: claiming to love God while hating a brother is not a minor inconsistency but a fundamental self-contradiction that voids the claim entirely. Czech rendering: lhář. Risk: Low. Direct, blunt, standard Czech word with no softening needed — the bluntness of the Greek should be preserved, not diplomatically softened in translation.
ἀδελφόν (adelphon, accusative of ἀδελφός) — “brother.” Literal meaning: a male sibling by blood; by NT extension, a fellow believer within the family of God. Semantic range: biological brother; fellow member of a covenant/faith community (a very common NT extension). English variants: “brother,” “fellow believer.” Contextual theological meaning: central to “Love for the Brethren as Evidence of New Birth” — the visible, testable proof of genuine love for the invisible God is concrete love for a visible fellow believer. Czech rendering: bratr. Risk: Medium. The word itself is simple and stable, but the extended, non-biological “fellow believer” sense needs to be taught explicitly for a secular reader whose only default association will be literal biological brotherhood — without that gloss, “bratr” will simply read as “sibling,” missing the letter’s ecclesial point entirely.

4:21 — καὶ ταύτην τὴν ἐντολὴν ἔχομεν ἀπʼ αὐτοῦ, ἵνα ὁ ἀγαπῶν τὸν θεὸν ἀγαπᾷ καὶ τὸν ἀδελφὸν αὐτοῦ.

ἐντολήν (entolēn, accusative of ἐντολή) — “commandment.” Literal meaning: an authoritative order/injunction, especially one issued by a person in authority. Semantic range: a specific directive (distinguished from νόμος, “law,” as a body/system); in John’s writings, frequently used of Jesus’s own authoritative instructions to his followers (John 13:34, 15:12). English variants: “commandment,” “command,” “instruction.” Contextual theological meaning: love for both God and neighbor is not offered as optional spiritual enthusiasm but as binding apostolic instruction traceable to Christ himself. Czech rendering: přikázání. Risk: Medium. “Přikázání” retains real cultural traction in Czech via “Desatero přikázání” (the Ten Commandments), which is still a widely recognized cultural touchpoint even among secular Czechs (comparable to “svatý”/name-days in the baseline) — a genuine asset here, but the specific content (a NEW commandment centered on love, distinct from the Decalogue’s list) needs to be made explicit so readers do not simply assume this refers to the Mosaic Ten Commandments.

PART B — Whole-Book Chapter-by-Chapter Study

Chapter 1 — Prologue: Fellowship, Light, and the Confession of Sin

1 John opens with an eyewitness prologue (1:1-4) and then states the letter’s first great doctrinal antithesis: God is light (1:5), which grounds the teaching on sin, confession, and cleansing (1:6-10).

λόγος τῆς ζωῆς (logos tēs zōēs) — “the Word of life” (1:1). Literal meaning: “word” (λόγος: message, account, discourse; also the Christological title of John 1:1) + “of life” (genitive, life as its content/source). Semantic range: λόγος ranges from a spoken utterance to (in John’s theological vocabulary) the eternal, personal self-expression of God. English variants: “the Word of life,” “the message about life.” Contextual theological meaning: identifies the letter’s subject (Jesus Christ himself, the eternal Son, encountered in space and time — “heard… seen… touched”) with the Johannine Logos-Christology, though here in genitive-construction form rather than as a bare title. Czech rendering: slovo života. Risk: High. Requires the reader to already have (or be given) John 1:1’s “Slovo” (Word/Logos) Christological background, which cannot be assumed; without it, “slovo života” reads as a vague inspirational phrase rather than a specific claim about the eternal Son becoming perceptible to human witnesses.
κοινωνία (koinōnia) — “fellowship” (1:3, 6, 7). [BASELINE — reused: společenství, Low]. Note for this curriculum: 1 John uses κοινωνία for two simultaneous, inseparable relationships — fellowship with God (vertical) and fellowship with one another (horizontal) — and the letter’s argument is precisely that these cannot be separated (cannot claim the first while breaking the second). This dual-directional usage should be flagged for teaching even though the baseline risk tier (Low) is retained, since the concept (not the word) carries new weight in this curriculum’s doctrine “Fellowship with God and One Another.”
φῶς (phōs) — “light” (1:5, 7; cf. 2:8-10). Literal meaning: physical light, illumination. Semantic range: physical light; by extension, moral purity, truth, revelation, the opposite of hiddenness/deception. English variants: “light.” Contextual theological meaning: “ὁ θεός φῶς ἐστιν” (“God is light,” 1:5) is the letter’s other great identity-statement alongside “God is love” (4:8, 16) — asserting God’s utter moral purity and self-disclosing truthfulness, with “no darkness at all” in him. Czech rendering: světlo. Risk: High. Ordinary Czech “světlo” is a purely physical/practical word (a light bulb, daylight, traffic lights) with almost no independent moral-metaphorical resonance for a secular reader outside of borrowed Christmas/Easter imagery, which itself (per the baseline’s notes on Velikonoce) has become substantially detached from doctrinal content. “God is light” must therefore be actively unpacked (moral purity, truthfulness, self-revelation — not merely brightness or comfort) rather than assumed to land through the word alone.
σκοτία (skotia) — “darkness” (1:5-6). Literal meaning: darkness, absence of light. Semantic range: physical darkness; moral/spiritual concealment, deception, evil. English variants: “darkness.” Contextual theological meaning: the direct antithesis-pair with φῶς, describing a life of concealed sin claiming fellowship with God while walking in moral darkness. Czech rendering: temnota / tma. Risk: Medium. Standard vocabulary; risk is chiefly ensuring the moral sense (not merely “nighttime” or “gloomy mood”) is understood.
ἀλήθεια (alētheia) — “truth” (1:6, 8; 2:4, 21; and repeatedly through the letter). Literal meaning: that which is not hidden/concealed (ἀ- “not” + λήθη “forgetting/concealment” — unconcealed reality). Semantic range: factual accuracy; also, in Johannine usage, a relational/moral quality — living in reality/integrity, especially as embodied in Christ himself (John 14:6). English variants: “truth,” “the truth,” “truly.” Contextual theological meaning: “the truth is not in us” (1:8) is a claim about self-deceptive denial of sin, not merely a factual error. Czech rendering: pravda. Risk: High. Ordinary Czech “pravda” is primarily a factual-correctness word (this statement is true/false); the letter’s frequent relational-moral sense (living “in the truth,” being self-deceived about one’s own sin) needs active distinction from mere factual accuracy.
ἁμαρτία (hamartia) — “sin” (1:7-10, and throughout). [BASELINE — reused: hřích, High]. Note for this curriculum: 1 John adds the specific pastoral problem of the false claim “we have no sin” (1:8, 10) — a claim of sinlessness, which the baseline’s “hřích” risk notes (colloquial flattening to “what a shame/pity”) do not directly address; this specific denial-of-sin problem needs its own explanatory framing distinct from the baseline’s flagged colloquial-idiom risk.
ὁμολογέω (homologeō) — “confess” (1:9). See full treatment at 4:15 above. Czech rendering: vyznat. Risk: High.
ἀφίημι (aphiēmi) — “forgive” (1:9). Literal meaning: to send away, let go, release (a debt, an offense). Semantic range: releasing a debt; dismissing/pardoning an offense; also used for physically “leaving” something. English variants: “forgive,” “release.” Contextual theological meaning: paired with καθαρίζω (cleanse) in 1:9, God’s forgiveness in response to confession is presented as certain and complete (“faithful and just”), not conditional on human merit. Czech rendering: odpustit. Risk: Medium. “Odpustit” is entirely ordinary Czech for everyday interpersonal forgiveness (forgiving a friend, forgiving a debt) and is not misleading, but the specific judicial ground of God’s forgiveness (based on Christ’s oběť smíření, 2:2, not on the sinner’s sincerity alone) needs explicit teaching so the term is not reduced to a purely emotional “letting go.”
καθαρίζω (katharizō) — “cleanse” (1:9). Literal meaning: to make clean, to purify (used of ritual/cultic purification in the LXX and of medical/physical cleansing). Semantic range: ritual purification; moral/spiritual purification; physical cleaning. English variants: “cleanse,” “purify.” Contextual theological meaning: paired with forgiveness, describing the removal of sin’s defiling effect, echoing OT sacrificial-cleansing imagery. Czech rendering: očistit. Risk: Medium. Ordinary word (cleaning a surface, purifying water); the sacrificial/cultic background (blood cleansing from sin, 1:7) needs explicit OT grounding since this background cannot be assumed.
αἷμα (haima) — “blood” (1:7). Literal meaning: blood. Semantic range: literal blood; by sacrificial extension, a life given in death as atonement. English variants: “blood.” Contextual theological meaning: “the blood of Jesus his Son cleanses us from all sin” — sacrificial-substitutionary language requiring OT background (Levitical sacrifice) to be meaningful rather than gruesome or confusing. Czech rendering: krev. Risk: Medium.
περιπατέω (peripateō) — “walk” (1:6-7, metaphorical). Literal meaning: to walk about, go on foot. Semantic range: literal walking; a common Semitic-influenced NT idiom for one’s manner of life/conduct. English variants: “walk,” “live,” “conduct oneself.” Contextual theological meaning: “walking in the light/darkness” describes a whole pattern of life, not a single act. Czech rendering: chodit (ve světle / v temnotě). Risk: Medium. The metaphorical “walk = live/conduct oneself” sense is present in Czech Bible tradition but not in ordinary secular speech, where “chodit” simply means literal ambulation (or, colloquially, “to date someone” — “chodit s někým” — an unrelated idiom to actively avoid triggering); needs a brief explanatory gloss on first use.

Chapter 2 — Advocate, Antichrist, and the Command to Love

παράκλητος (paraklētos) — “advocate” (2:1). Literal meaning: one called alongside (παρά “beside” + καλέω “to call”) — originally a legal term for a defense counsel/advocate called to one’s side in court. Semantic range: legal advocate/defense attorney; helper, comforter, intercessor (the same term John’s Gospel applies to the Holy Spirit, John 14:16, 26). English variants: “advocate,” “comforter” (KJV), “counselor,” “helper.” Contextual theological meaning: Jesus Christ himself, in his risen and exalted state, functions as the believer’s defense before the Father when sin has been committed — directly grounding “Confession and Forgiveness of Sin.” Czech rendering: přímluvce. Risk: High. Builds on the baseline’s “přímluva” (intercession) root [BASELINE-adjacent, High], but the specific legal-defense nuance (an advocate pleading a case, not merely someone who prays) is a distinct and unfamiliar concept for a reader with no courtroom-advocacy framework for prayer; needs explicit unpacking, and must be kept lexically distinct in Czech from the Holy Spirit’s separate “Advocate” role in John 14 to avoid confusing the two persons and their two distinct advocacy functions.
ἱλασμός (hilasmos) — “propitiation/atoning sacrifice” (2:2). See full treatment at 4:10 above; first occurrence in the letter. Czech rendering: oběť smíření. Risk: Critical.
δίκαιος (dikaios) — “righteous” (2:1, 29; 3:7). [BASELINE-adjacent: root of spravedlnost/spravedlivý, High]. Applied both to Christ (“Jesus Christ the righteous,” 2:1) and, derivatively, to believers who “do righteousness” (2:29; 3:7). Czech rendering: spravedlivý. Risk: High (same profile as baseline’s righteousness entry — risk of collapsing into mere civic fairness/legal correctness rather than right standing/conduct before God).
ἐντολή (entolē) — “commandment” (2:3-8, and throughout). See full treatment at 4:21 above; first sustained usage here, including the “new commandment… yet not new” paradox (2:7-8). Czech rendering: přikázání. Risk: Medium.
κόσμος (kosmos) — “world” (2:15-17; also 3:1, 13; 4:1-5, 9, 14, 17; 5:19). Literal meaning: an ordered system/arrangement (root of “cosmos/cosmetic” — orderly arrangement); by NT extension, the created world, humanity in general, or (in its most theologically loaded Johannine sense) the organized system of human life and values in active rebellion against God. Semantic range: physical creation (neutral); humanity as such (neutral-to-positive, object of God’s love, 4:9); the God-opposing world-order (negative, 2:15-17; 5:19) — three genuinely distinct senses within the same short letter. English variants: “world,” “the world,” “worldly.” Contextual theological meaning: “Do not love the world” (2:15) cannot be read as a call to reject the physical creation or other people (that would contradict 4:9’s “God loved the world”); it specifically targets “the lust of the flesh, the lust of the eyes, and the pride of life” as a competing value-system. Czech rendering: svět. Risk: High. Because Czech “svět” carries only the neutral senses (the planet, everyone, “the whole world”) in ordinary usage, the specific negative, system-of-values sense central to “Overcoming the World” is entirely absent from the word’s normal secular meaning and must be built up as new conceptual content each time this negative sense is active — flagging which sense is operative in a given verse is essential context to supply for the reader, since Czech offers no separate lexical item to disambiguate as English sometimes does with capitalization or added qualifiers.
ἐπιθυμία (epithymia) — “desire/lust” (2:16-17). Literal meaning: a strong desire, craving (ἐπί “upon” + θυμός “passion/desire”). Semantic range: neutral strong desire/longing; in NT ethical vocabulary, usually the negative sense of sinful, disordered craving. English variants: “lust,” “desire,” “craving.” Contextual theological meaning: “the lust of the flesh… of the eyes” characterizes the God-opposing value-system of “the world.” Czech rendering: touha / žádost. Risk: Medium. Ordinary Czech “touha” is largely neutral or even positive (longing, aspiration); needs explicit framing as disordered/sinful craving in this context, since the word alone does not carry that negative charge the way, e.g., “chtíč” (lust, more sexually/negatively loaded) might in narrower contexts — translators should weigh whether “žádost” (closer to the Kralice/ČEP tradition and slightly more negatively marked) better preserves the intended sense than the softer “touha.”
σάρξ (sarx) — “flesh” (2:16, “lust of the flesh”; also 4:2, “come in the flesh” — see below, a different and positive sense). Literal meaning: physical body tissue, flesh. Semantic range: physical body (neutral, as in 4:2’s incarnation-confession); the fallen, sin-prone aspect of human nature (negative, as in 2:16). This is a genuinely context-sensitive, double-duty term within the same letter. English variants: “flesh,” “body,” “sinful nature” (in negative contexts, some modern versions paraphrase). Contextual theological meaning: translators must never collapse both senses into a single negative connotation, since 4:2’s use of σάρξ for the incarnation is a positive, essential affirmation (real, genuine humanity of Christ) while 2:16’s use is a negative moral-critique term. Czech rendering: tělo. Risk: High. Ordinary Czech “tělo” is neutral (the physical body), which actually serves the positive incarnational sense in 4:2 well, but risks under-conveying the negative moral sense in 2:16 (disordered, sin-inclined human nature) since Czech “tělo” alone does not carry that ethical charge; each occurrence needs its governing sense flagged explicitly rather than relying on the single word to do double duty as it does in Greek.
ἀντίχριστος (antichristos) — “antichrist” (2:18, 22; 4:3; also 2 John 7). Literal meaning: “against Christ” / “in place of Christ” (ἀντί can mean either “against” or “instead of/in place of”). Semantic range: 1 John uniquely uses this as both a singular future figure (“the antichrist is coming”) and a present plural category (“many antichrists have come,” 2:18) — false teachers who deny the Son. English variants: “antichrist,” “the antichrist.” Contextual theological meaning: doctrinally defined in 2:22 as “the one who denies that Jesus is the Christ” — a christological heresy-marker, not primarily an apocalyptic-beast figure (that association comes from Revelation, a different book). Czech rendering: antikrist. Risk: Critical. This is a genuine, specific collision risk unusual for this Language Package: unlike most terms here, “Antikrist” (transliterated “Antichrist”) has an unusually strong secular pop-culture association in the contemporary Czech media landscape — most notably the internationally released, widely discussed arthouse horror film Antichrist (2009, dir. Lars von Trier), which circulated prominently in Czech film culture and criticism. A general secular Czech reader encountering “antikrist” is at real risk of importing horror-genre, occult, or shock-cinema associations rather than 1 John’s specific, comparatively mundane doctrinal definition (a false teacher denying Christ’s identity). This must be explicitly defined from the text itself (2:22) on first use, precisely to override the more available pop-culture reference point — a Critical-tier risk of a fundamentally different character than most entries in this glossary, closer to the baseline’s general secularization concern but sharper because a specific, named competing cultural referent exists.
χρῖσμα (chrisma) — “anointing” (2:20, 27). Literal meaning: an anointing, the act or substance of anointing with oil. Semantic range: literal ritual anointing (kings, priests, the sick); by NT extension, the Holy Spirit’s inward endowment/teaching ministry given to believers. English variants: “anointing,” “unction” (archaic). Contextual theological meaning: believers “have an anointing from the Holy One” that teaches them truth internally, guarding them from the deceptions of antichrist-teachers. Czech rendering: pomazání. Risk: High. “Pomazání” is a real Czech word but has essentially no active use in ordinary secular speech and virtually no independent cultural resonance (unlike, e.g., “svatý,” which retains name-day traction); the entire OT royal/priestly anointing background, and its NT application to the Spirit’s inward work in every believer, must be constructed from scratch.
ἐσχάτη ὥρα (eschatē hōra) — “the last hour” (2:18). Literal meaning: the final hour/time. Semantic range: an eschatological marker of the end times, not a literal 60-minute period. English variants: “the last hour,” “the last time.” Contextual theological meaning: signals that the appearance of antichrist-figures is evidence the end-times era has already begun. Czech rendering: poslední hodina / poslední čas. Risk: Medium. Basic eschatological framework (already inaugurated “end times,” not a single future countdown) needs brief explanation.
ψεύστης (pseustēs) — “liar” (2:4, 22). See full treatment at 4:20 above.

Chapter 3 — Children of God, New Birth, and Righteous Living

τέκνα θεοῦ (tekna theou) — “children of God” (3:1-2, 10; also 5:2). Literal meaning: τέκνον, “child,” specifically emphasizing origin/birth (from τίκτω, “to bear/beget”) rather than legal status. Semantic range: offspring by birth. English variants: “children of God,” “sons of God” (in gender-inclusive modern translations, “children” is preferred). Contextual theological meaning: John’s characteristic term for believers, emphasizing organic begetting (see γεννάω below) rather than Paul’s legal adoption metaphor for essentially the same reality. Czech rendering: děti Boží. Risk: High. This must be actively distinguished in teaching material from the baseline’s [BASELINE — reused: přijetí za syna, adoption, Medium], since these are two different biblical metaphors (Johannine organic birth vs. Pauline forensic adoption) for a related but not identical theological point; collapsing them into a single undifferentiated idea would blur a genuine and pedagogically important distinction unique to comparing Romans and 1 John side by side in this curriculum.
γεννάω (gennaō) — “beget/give birth to,” used repeatedly in the passive “has been born of God” (γεγέννηται ἐκ τοῦ θεοῦ / γεγεννημένος ἐκ τοῦ θεοῦ — 2:29; 3:9; 4:7; 5:1, 4, 18). Literal meaning: to father/beget (of a father) or to bear/give birth to (of a mother); the passive form used throughout 1 John is deliberately ambiguous between these but consistently rendered “born” in English tradition. Semantic range: physical procreation/birth. English variants: “born (of God),” “begotten (of God).” Contextual theological meaning: this is the letter’s central doctrinal engine for the curriculum’s “Love for the Brethren as Evidence of New Birth” — a supernatural, divine origin that necessarily and observably produces righteousness, love, and victory over sin as its “family resemblance” (3:9-10; 5:4, 18). Czech rendering: narodit se z Boha / je zrozen z Boha. Risk: Critical. This is arguably the single most important recurring doctrinal term specific to 1 John (distinct from, though related to, the baseline’s “resurrection” and “adoption” entries). No ordinary secular Czech usage of “narodit se z Boha” exists at all; the concept of a supernatural, divinely-caused new birth that is evidenced by observable moral and relational fruit must be constructed as wholly new theological content, and — critically for translation consistency — every one of its roughly ten occurrences throughout the letter must be rendered with the same Czech phrase, since the letter’s repeated use of this exact construction as a refrain is itself part of its rhetorical argument.
ἀνομία (anomia) — “lawlessness” (3:4). Literal meaning: without-law-ness (ἀ- “without” + νόμος “law”). Semantic range: the state or condition of being without law, or in active violation of law; broader and more essential-character-oriented than a single unlawful act. English variants: “lawlessness,” “transgression of the law” (KJV). Contextual theological meaning: “sin is lawlessness” defines ἁμαρτία (sin) at its root as rebellion against God’s ordered will, not merely a list of specific violations. Czech rendering: nezákonnost / bezzákonnost (or descriptively, “vzpoura proti Božímu zákonu”). Risk: Medium-High. Relates to the baseline’s [BASELINE — reused: zákon, High] (law) term; “nezákonnost” is a workable but somewhat abstract legal-sounding Czech coinage without strong independent traction, so it likely needs to be paired with a more concrete gloss (“odmítnutí Božího řádu,” rejection of God’s order) rather than left as a bare abstract noun.
διάβολος (diabolos) — “devil” (3:8, 10). Literal meaning: slanderer, accuser (διαβάλλω, “to throw across/accuse”). Semantic range: a slanderer/accuser generically; as a proper title, Satan, the personal enemy of God and humanity. English variants: “the devil,” “the slanderer” (etymological). Contextual theological meaning: those who persist in unrighteousness are identified, in family-resemblance terms, as “of the devil” rather than “of God” — a sharp either/or contrast structurally parallel to “children of God” above. Czech rendering: ďábel. Risk: Medium. Stable, recognized Czech term, though secular popular culture (fiction, film, idiomatic expressions like “čert” in Czech folklore, a partially overlapping but distinct folkloric figure) may supply a more folkloric, less theologically serious mental picture than 1 John’s stark moral-spiritual antithesis intends; a brief clarifying note distinguishing the biblical “ďábel” from folk-devil (“čert”) imagery is worthwhile.
ἀνθρωποκτόνος (anthropoktonos) — “murderer” (3:15, of Cain, alluding to Genesis 4). Literal meaning: man-killer (ἄνθρωπος “man/human” + κτείνω “to kill”). Semantic range: one who kills a human being. English variants: “murderer.” Contextual theological meaning: hatred of a brother is morally equated with murder — an extreme, deliberately shocking equivalence. Czech rendering: vrah. Risk: Low. Standard, blunt Czech word; preserve the shock value rather than softening it.
τίθημι τὴν ψυχήν (tithēmi tēn psychēn) — “lay down one’s life” (3:16, of Christ, and of believers for one another). Literal meaning: “to place/lay down” + “the soul/life” (ψυχή, the animating life-principle, not merely “personality” in the modern psychological sense). Semantic range: ψυχή ranges from “soul” (immaterial self) to simply “life” (as in, one’s physical existence) — here clearly the latter, as in a sacrificial death. English variants: “lay down his life,” “give his life.” Contextual theological meaning: Christ’s sacrificial death (echoing John 10:11, 15, 17-18, same author) becomes the pattern and standard for costly, self-giving love among believers. Czech rendering: položit život. Risk: Medium. Standard idiom in Czech Bible tradition (echoing military/heroic self-sacrifice language also used secularly, e.g., of soldiers), which is a genuine cultural asset here; the risk is ensuring the reader connects this specifically to Christ’s atoning death (not generic heroism) as the pattern-setting act.
σπλάγχνα (splagchna) — “heart/compassion, bowels of compassion” (3:17). Literal meaning: the inner organs/entrails, used idiomatically in both Greek and Hebrew thought as the seat of deep emotion (comparable to English “gut feeling,” “heartfelt”). Semantic range: literal internal organs; figuratively, the seat of compassion/deep feeling. English variants: “bowels of compassion” (KJV, literal), “heart,” “compassion,” “pity.” Contextual theological meaning: refusing material generosity toward a brother in need reveals that God’s love does not actually reside in a person, regardless of verbal claims. Czech rendering: srdce / slitování. Risk: Low-Medium. “Srdce” (heart) is the natural modern equivalent and reads naturally; low risk given the idiom transfers well.
παρρησία (parrēsia) — “confidence” (3:21; cf. 4:17 above). Recurs here regarding confidence in prayer specifically. Czech rendering: důvěra. Risk: High (see full treatment at 4:17).
μένω (menō) — “abide/remain” (3:6, 9, 14, 17, 24, and throughout chs. 2-4). Literal meaning: to stay, remain, continue in a place or state; a stative verb of continued presence. Semantic range: literal physical remaining/staying; figurative continuation in a state, relationship, or teaching. English variants: “abide,” “remain,” “continue,” “live in.” Contextual theological meaning: describes the mutual, continuing indwelling relationship between God and the believer (both directions: God abides in the believer, and the believer abides in God) — one of 1 John’s most structurally important recurring verbs, alongside γινώσκω and ἀγαπάω. Czech rendering: zůstávat. Risk: Medium. Ordinary Czech “zůstávat” (to stay/remain, e.g., “zůstat doma”) is entirely serviceable but purely spatial/literal in everyday use; the letter’s relational, mutual-indwelling sense (a continuing, living union, not a static location) needs explicit unpacking on first substantive use, and — because this verb recurs so heavily as a structural refrain — must be rendered with strict lexical consistency throughout the letter (never varied to “trvat,” “setrvávat,” etc., even where those might seem stylistically tempting) so that the Czech reader can track the same recurring argument the Greek text tracks.

Chapter 4 — Testing the Spirits and the Incarnation Confession (vv. 1-6; vv. 7-21 treated in Part A above)

δοκιμάζετε (dokimazete, from δοκιμάζω) — “test, examine, discern” (4:1). Literal meaning: to test metal for genuineness (assaying), by extension to examine/scrutinize anything for authenticity. Semantic range: testing for genuineness (metallurgical origin); moral/spiritual discernment; approval after testing. English variants: “test,” “try,” “discern,” “examine.” Contextual theological meaning: believers are commanded to actively evaluate teachings/teachers against a doctrinal standard (the incarnation confession, 4:2-3), not to passively accept every spiritual claim. Czech rendering: zkoušet / rozlišovat. Risk: High. This directly grounds the curriculum’s “Testing the Spirits” doctrine; the specific risk is that “duchy” (spirits, see below) combined with “testing/examining” risks being read through a secular-Czech folkloric or entertainment lens (ghost-investigation reality-television tropes, séance/folklore associations of “duchové,” ghosts, in Czech popular culture) rather than as sober doctrinal discernment of religious teaching and teachers. This should be explicitly reframed around content (what is taught about Jesus Christ, 4:2-3), not phenomena (unusual experiences or manifestations).
πνεῦμα (pneuma) — “spirit” (4:1-6, six occurrences in six verses; contrast with [BASELINE — reused: Duch svatý] for the Holy Spirit specifically). Literal meaning: breath, wind; by extension, the animating principle of life, or a non-physical personal/impersonal being. Semantic range: exceptionally wide — the Holy Spirit (capitalized, personal, divine); a human spirit/inner disposition; an unclean/demonic spirit; here, most precisely, “the spirit” animating/underlying a given prophetic message or teacher, tested by its content. English variants: “spirit,” “spirits,” “the Spirit.” Contextual theological meaning: 4:1-6 is concerned with discerning the source (divine or otherwise) behind competing religious claims and teachers via a specific doctrinal test (confession of the incarnate Christ), not with detecting supernatural phenomena in general. Czech rendering: duch. Risk: Critical. This is a genuinely severe context-sensitivity problem for Czech: the same word “duch” covers the Holy Spirit [BASELINE — Critical], a human disposition/attitude (“v tomto duchu,” “in this spirit”), and — significantly for secular Czech popular culture — folkloric ghosts (“duch zámku,” a castle ghost; Czech ghost-story and haunted-castle tourism is a genuinely live cultural category). Every occurrence in 4:1-6 needs context clearly established (spirit = the source/content behind a religious teaching/teacher, tested by whether it confesses Christ rightly) to prevent a secular reader’s default association from drifting toward folklore/entertainment “ghost” categories rather than 1 John’s doctrinal-discernment concern.
ψευδοπροφήτης (pseudoprophētēs) — “false prophet” (4:1). Builds on [BASELINE — reused: prorok, Medium]. Literal meaning: a false/lying prophet (ψεῦδος “falsehood” + προφήτης “prophet”). Semantic range: one who falsely claims prophetic/divine authority for a message not actually from God. English variants: “false prophet.” Contextual theological meaning: warns against religious teachers who claim spiritual authority but teach falsely about Christ’s identity. Czech rendering: falešný prorok. Risk: Medium.
πλάνη (planē) — “error/deception” (4:6, “spirit of error”). Literal meaning: a wandering off course, a straying (root of English “planet,” a “wandering star”). Semantic range: a wandering astray; deception, delusion, error (both the state of being deceived and the act of deceiving). English variants: “error,” “deceit,” “delusion.” Contextual theological meaning: contrasted with “the Spirit of truth” — a comprehensive category of active spiritual deception, not mere innocent mistake. Czech rendering: blud (preferred, stronger/more theologically weighted term in Czech Bible tradition) or omyl (weaker, more like “a simple mistake”). Risk: Medium. Translators should prefer “blud” over “omyl” to preserve the sense of a comprehensive, deliberate deception-system rather than an innocent factual error.
ὁμολογεῖ Ἰησοῦν Χριστὸν ἐν σαρκὶ ἐληλυθότα — “confesses Jesus Christ having come in the flesh” (4:2-3). This clause is the letter’s doctrinal test-formula for the incarnation. See [BASELINE — reused: vtělení, Critical] and σάρξ (flesh) above (Chapter 2), here in its positive, essential sense: the real, genuine, physical humanity of the eternal Son is a non-negotiable confessional boundary, and its denial is definitionally “the spirit of antichrist” (4:3). Risk: Critical — directly grounds “The Incarnation and Antichrist” doctrine; must be taught together with the baseline’s incarnation entry rather than treated as a separate new concept.
νικάω (nikaō) — “overcome/conquer” (4:4; also 2:13-14; 5:4-5). Literal meaning: to win a victory, to conquer (root of the name “Nike”). Semantic range: military/athletic victory over an opponent; by NT extension, spiritual victory over sin, the world, or evil powers. English variants: “overcome,” “conquer,” “victory.” Contextual theological meaning: believers have already overcome the spirit of antichrist/the world because “he who is in you is greater than he who is in the world” (4:4) — victory grounded in God’s indwelling presence, not human effort or willpower. Czech rendering: přemoci / zvítězit. Risk: High. Directly grounds “Overcoming the World”; the risk is that ordinary Czech “zvítězit” (to win, e.g., a sports match, a competition) carries strong secular competitive-achievement connotations that could reframe this as a self-help “you can win if you try hard enough” message, exactly the opposite of the text’s actual ground for confidence (God’s indwelling presence, not the believer’s own strength or effort).

Chapter 5 — Faith’s Victory, the Triple Witness, and Eternal Life

πιστεύω (pisteuō) — “believe” (5:1, 5, 10, 13). [BASELINE-adjacent: víra root, High]. Here specifically “believing that Jesus is the Christ” (5:1) and “believing in the name of the Son of God” (5:13) as the identifying mark of the new birth and the explicit basis of the letter’s stated purpose (5:13, “that you may know that you have eternal life”). Czech rendering: věřit. Risk: High (inherited from baseline faith entry).
νικάω (nikaō) — “overcome” (5:4-5, “whoever is born of God overcomes the world… this is the victory that has overcome the world, our faith”). See full treatment under Chapter 4 above; here explicitly identified with faith as the mechanism of victory. Risk: High.
μαρτυρία / μαρτυρέω (martyria / martyreō) — “testimony/witness, to testify” (5:6-11, used nine times in six verses — the chapter’s dominant term). See full treatment at 4:14 above. Czech rendering: svědectví / svědčit. Risk: Medium-High in this concentration, given the legal-courtroom metaphor (three witnesses establishing a legal case, echoing Deuteronomy’s two-or-three-witness rule) needs the OT legal background made explicit for a reader unfamiliar with it.
τὸ πνεῦμα καὶ τὸ ὕδωρ καὶ τὸ αἷμα (to pneuma kai to hydōr kai to haima) — “the Spirit and the water and the blood” (5:6, 8) — the three witnesses. Literal meaning: Spirit (see above); water (literal water, most likely referring to Jesus’s baptism, though some interpreters connect it to the water at the cross, John 19:34); blood (literal blood, Jesus’s sacrificial death). Semantic range: concrete historical referents, not symbols to be freely allegorized. English variants: “the Spirit, the water, and the blood.” Contextual theological meaning: three converging testimonies (the Spirit’s ongoing witness; the historical facts of Jesus’s baptism and death) jointly confirm Jesus’s identity as the Christ, the Son of God. Czech rendering: Duch, voda a krev. Risk: High. These concrete historical referents require background (Jesus’s baptism narrative, the crucifixion) that a reader with low biblical narrative literacy will not supply; without that narrative grounding, the phrase reads as a cryptic triad rather than a legal-style convergence of historical evidence.
ζωὴ αἰώνιος (zōē aiōnios) — “eternal life” (5:11-13, 20; also 1:2; 2:25; 3:15). Literal meaning: ζωή, “life” (as opposed to θάνατος, death, or βίος, mere biological existence — ζωή in Johannine usage typically denotes the fuller, God-given quality of life); αἰώνιος, “eternal, of the age (to come)” — not merely “everlasting duration” but “belonging to God’s eternal, coming age.” Semantic range: unending temporal duration (a common but partial rendering); the qualitatively different, God-given life of the age to come, already possessed in part now. English variants: “eternal life,” “everlasting life.” Contextual theological meaning: the letter’s explicitly stated purpose (5:13) is that readers “may know” they have this life — directly grounding “Assurance of Salvation and Eternal Life.” Czech rendering: věčný život. Risk: Critical. This shares the exact risk profile the baseline documented for “spasení”: “věčný život” is a real, stable, recognizable Czech Bible-tradition phrase, but for a secular reader it risks registering as a vague, sentimental, or purely quantitative idea (“living forever,” which secular culture more readily associates with medical life-extension or science-fiction immortality than with covenantal relationship with God) rather than the letter’s specific, relational, already-possessed-in-part reality. Must be taught narratively and relationally (a quality and relationship of life, grounded in the Son, known with confidence now — not merely “life that never ends”) rather than assumed to communicate on its own.
γινώσκω / εἰδέναι (ginōskō / eidenai) — “to know” (5:13, 18-20, “that you may know,” repeated four times in the closing verses). Builds on 4:7’s γινώσκω discussion above. Contextual theological meaning: the letter’s explicit purpose statement is to produce settled, confident knowledge (not merely hope or wishful feeling) of one’s salvation status — the epistemological backbone of “Assurance of Salvation.” Czech rendering: vědět / znát. Risk: High. The letter’s repeated “we know” (5:18-20) needs to be preserved as confident, settled assurance language, not softened into tentative Czech hedging (“myslím, že…” “I think that…”) which would undercut the entire rhetorical point of the closing section.
ἁμαρτία πρὸς θάνατον (hamartia pros thanaton) — “a sin leading to death” (5:16-17, contrasted with sin “not leading to death”). Literal meaning: sin (see baseline entry) “toward/leading to” death. Semantic range: a difficult, debated NT phrase — most likely referring to a specific, deliberate, unrepentant rejection of Christ (perhaps echoing the “unforgivable sin” theme of Mark 3:29) rather than a general category of especially serious individual sins. English variants: “a sin that leads to death,” “a mortal sin” (in some traditions’ terminology, though this specific English phrase is generally avoided in Protestant translation to prevent confusion with a differently-defined doctrinal category). Contextual theological meaning: distinguishes ordinary sin (which fellow believers should pray for one another about, with confidence of forgiveness per 1:9) from a category so severe/final that intercessory prayer is not commanded for it. Czech rendering: hřích k smrti. Risk: High. This is one of the rare terms in this Language Package where a genuine, specific competing religious framework risk exists rather than the more typical “no framework at all” risk documented in the baseline: the Czech lands’ historical (if now largely secularized) Roman Catholic heritage has left “hřích k smrti” vulnerable to being read through the inherited Catholic theological category of “smrtelný hřích” (mortal sin, as formally distinguished from “všední hřích,” venial sin, in Catholic moral theology) — a formal doctrinal distinction 1 John itself does not draw in those terms. Translators and teaching material must actively clarify that this phrase is not a reference to the Catholic mortal/venial sin taxonomy, but to a specific, debated Johannine category likely referring to decisive, final rejection of Christ.
ὁ πονηρός (ho ponēros) — “the evil one” (5:18-19). Literal meaning: the evil one, the wicked one (substantival use of the adjective πονηρός, “evil, wicked, harmful”). Semantic range: general moral evil (adjective); as here, with the definite article, a personal title for Satan. English variants: “the evil one,” “the wicked one.” Contextual theological meaning: parallels διάβολος (devil, ch. 3 above) as a personal, hostile spiritual being from whom the “born of God” believer is kept safe. Czech rendering: ten Zlý. Risk: Medium. “Ten Zlý” (capitalized as a title) is the same phrase used in the traditional Czech Lord’s Prayer (“zbav nás od zlého” / “chraň nás od Zlého,” “deliver us from the evil one/from evil”) — a genuine cultural touchpoint most Czechs, even secular ones, have some passive familiarity with from cultural exposure to the Lord’s Prayer, which is a modest asset here; the risk is that without the definite personal referent being made clear, “zlý” could be read as an abstract force (“evil” in general) rather than a personal being (Satan).
εἴδωλα (eidōla) — “idols” (5:21, the letter’s closing exhortation: “keep yourselves from idols”). Literal meaning: an image, likeness, especially a cult image/statue representing a deity (root of English “idol,” “idolatry”). Semantic range: a physical cult image/statue; by extension, any false object of ultimate devotion/worship. English variants: “idols.” Contextual theological meaning: a final, somewhat abrupt warning against replacing exclusive devotion to the true God with any substitute object of worship — plausibly a warning relevant to the letter’s original Greco-Roman religious environment, and readily extended to any modern substitute ultimate loyalty. Czech rendering: modly. Risk: High. This is a specific, concrete, and easily overlooked collision risk: the English/international loanword “idol” has been borrowed directly into colloquial Czech (“idol”) with the overwhelmingly dominant contemporary meaning of a celebrity, pop star, or admired public figure (e.g., televised talent-show titles, “Česko Slovensko má talent”-style branding, or simply “je to můj idol,” “he’s my idol/hero”). Translators must use the traditional Bible-vocabulary term “modly” (graven images/false gods) and must actively avoid the cognate loanword “idoly,” which in contemporary secular Czech usage would most likely be read as a warning against having a favorite celebrity or admired public figure — a trivializing misreading that would blunt the exclusivity-of-worship point of the entire letter’s climactic final sentence.
ἀληθινός θεός (alēthinos theos) — “the true God” (5:20). Literal meaning: ἀληθινός, “true, genuine, real” (as opposed to false/counterfeit), modifying θεός, “God.” Semantic range: genuineness/authenticity as opposed to imitation, distinct from ἀληθής (“true” in the sense of factually accurate). English variants: “the true God,” “the real God.” Contextual theological meaning: identifies the God revealed through the Son as the sole genuine deity, as opposed to any counterfeit — a fitting climax immediately preceding the idols warning of 5:21. Czech rendering: pravý Bůh. Risk: Medium. Builds on [BASELINE — reused: Bůh, Critical]; the specific “genuine vs. counterfeit” nuance (rather than simply “factually existing”) benefits from brief clarification given its close pairing with the idols warning.

Summary of Full-Book Coverage Confirmation

Chapter 1: New terms analyzed — λόγος τῆς ζωῆς, φῶς, σκοτία, ἀλήθεια, ὁμολογέω, ἀφίημι, καθαρίζω, αἷμα, περιπατέω; κοινωνία and ἁμαρτία reused/extended from baseline.
Chapter 2: New terms analyzed — παράκλητος, ἱλασμός, δίκαιος (adjectival), ἐντολή, κόσμος, ἐπιθυμία, σάρξ, ἀντίχριστος, χρῖσμα, ἐσχάτη ὥρα, ψεύστης.
Chapter 3: New terms analyzed — τέκνα θεοῦ, γεννάω, ἀνομία, διάβολος, ἀνθρωποκτόνος, τίθημι τὴν ψυχήν, σπλάγχνα, μένω (consolidated), παρρησία (first full treatment).
Chapter 4: Core passage (4:7-21) fully treated verse-by-verse in Part A; vv. 1-6 additionally analyzed for δοκιμάζω, πνεῦμα (context-sensitive), ψευδοπροφήτης, πλάνη, the incarnation-confession formula, and νικάω.
Chapter 5: New terms analyzed — πιστεύω (in this letter’s specific usage), νικάω (culminating usage), μαρτυρία/μαρτυρέω, the Spirit/water/blood triad, ζωὴ αἰώνιος, γινώσκω/εἰδέναι (culminating usage), ἁμαρτία πρὸς θάνατον, ὁ πονηρός, εἴδωλα, ἀληθινός θεός.

No chapter of 1 John is silently omitted; every chapter has been explicitly reviewed and its load-bearing vocabulary documented above.

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