Cross-Reference and Theme Analysis — Mark 1–16 (Persian)
Method and Scope
This document catalogs every Old Testament quotation and allusion in Mark, chapter by chapter, plus messianic references, typological patterns, and cross-curriculum parallels to the baseline Romans Language Package for Persian. Citations are given in normalizable “Book Chapter:Verse” form (e.g., “Isaiah 53:12”, “Genesis 2:24”) to support automated lookup in Phase 2. All character names, doctrinal terms, and book-name conventions follow translation_memory.json and the baseline’s established book-name list exactly; new book names required for Mark’s OT citations are added to that list in Section 5 below. Every chapter of Mark is represented; chapters contributing no direct OT citation or new typological material are explicitly marked “reviewed — no new citation.”
Section 1 — Chapter-by-Chapter OT Quotation and Allusion Matrix
Mark 1
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 1:2-3 | Fulfillment of Prophecy; Kingdom Breaking In | John the Baptist | Malachi 3:1 (“I send my messenger”); Isaiah 40:3 (“voice crying in the wilderness”) — composite quotation attributed by Mark only to “Isaiah the prophet” | Text-critical note: the composite attribution is intentional Second-Temple citation practice, not an error to be smoothed over or footnoted as a “mistake.” Ties to baseline’s fulfillment_of_prophecy entry and its naskh-abrogation caution — teach as continuity, not supersession-by-later-revelation in the Islamic sense. |
| Mark 1:11 | Sonship of Christ; Suffering Servant | Jesus; God the Father | Psalm 2:7 (“You are my Son”); Isaiah 42:1 (“my Servant… my soul delights in him”) | Fuses royal-messianic Sonship (Ps 2, a coronation psalm) with Servant identity (Isa 42, first Servant Song) at the baptism — the interpretive key to the whole curriculum’s pairing of “Suffering Servant” and “Son of God.” Persian رendering must not let پسر خدا register as triumphal-royal only; the Servant allusion needs explicit teaching. |
| Mark 1:44 | Jesus’ Authority over Sickness | the leper | Leviticus 13–14 (cleansing/purity legislation) | Background law for the purity system more fully engaged in Mark 7; connects to پاک/ناپاک entry. |
Mark 2
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 2:25-26 | Lordship of Christ; Authority over Law | David, Abiathar | 1 Samuel 21:1-6 (David eating the showbread) | Jesus argues from a Davidic precedent to his own greater authority — reinforces baseline’s davidic_covenant entry; David typology, not verbatim OT quotation. |
| Mark 2:10, 2:28 | Deity of Christ; Lordship of Christ | Son of Man | No direct OT quotation; conceptual background Daniel 7:13-14 (see Section 2) | First narrative claims of the Son of Man’s authority to forgive sin and to be “lord of the Sabbath” — establish Daniel 7 background here for later payoff at 8:38; 13:26; 14:62. |
Mark 3
Reviewed — no direct OT quotation. One allusion of note:
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 3:27 | Kingdom of God Breaking In | Satan (the “strong man”) | Possible allusion to Isaiah 49:24-25 (plunder taken from the mighty one) | Low-certainty allusion, not a formal quotation; flag as typological background (divine warrior overcoming the captor), not a fixed citation requiring exact rendering match. |
Mark 4
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 4:12 | Kingdom Breaking In; Messianic Secret | the crowds | Isaiah 6:9-10 (seeing but not perceiving, hearing but not understanding) | Direct parallel to Romans 11:8, which quotes a related blend of Deuteronomy 29:4/Isaiah 29:10 for the same “eyes that do not see” motif applied to Israel’s hardening. See Section 4, Rule 3, for the mandatory rendering-consistency approach. |
| Mark 4:32 | Kingdom Breaking In | — | Possible allusion: Ezekiel 17:23; Daniel 4:10-12 (great tree, birds nesting in its branches) | Kingdom-growth typology; the “birds of every kind nesting” motif carries an implicit Gentile-inclusion note (cf. baseline’s unity_of_jews_and_gentiles), worth flagging for teaching material even though it is allusion, not quotation. |
Mark 5
Reviewed — no OT quotation or new typological material. (Talitha koum, 5:41, is preserved Aramaic, not an OT citation; see glossary Section C of 08_core_glossary.md.)
Mark 6
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 6:4 | Messianic Secret | Jesus | Proverbial pattern echoing rejected-prophet narratives (cf. Jeremiah 11:21; 1 Kings 19:1-10, Elijah’s rejection) | Typological pattern (prophet without honor in his hometown), not a fixed quotation. |
| Mark 6:15 | Fulfillment of Prophecy | Elijah; John the Baptist | Malachi 4:5-6 (Elijah to come before the Day of the LORD) | Critical for the Elijah-typology developed further at 9:11-13; do not let this collapse into an Islamic finality-of-prophets framework (see baseline’s prophet entry). |
| Mark 6:34 | Suffering Servant and Son of God | — | Numbers 27:17; Ezekiel 34:5, 23; Psalm 23 (shepherd-without-a-shepherd imagery) | Messianic Shepherd-King typology; connects to baseline’s davidic_covenant and to Mark 14:27’s Zechariah 13:7 shepherd-strike quotation. |
Mark 7
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 7:6-7 | Kingdom Breaking In (heart vs. tradition) | the Pharisees | Isaiah 29:13 (direct quotation: “this people honors me with their lips…”) | Thematically parallels Romans 2:28-29 (circumcision of the heart, not merely outward) — not a shared verbatim citation, but the same heart-vs-externals contrast; worth a cross-note for consistency of theological framing, not identical wording. |
| Mark 7:10 | Law (ناموس) | Moses | Exodus 20:12/Deuteronomy 5:16 (honor father and mother); Exodus 21:17/Leviticus 20:9 (cursing parents) | Direct Decalogue and case-law citation; reuse ناموس exactly per baseline. |
Mark 8
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 8:38 | Necessity of the Cross; Messianic Secret | Son of Man | Daniel 7:13-14 (allusion, not quotation) | First of three “Son of Man coming in glory” sayings (8:38; 13:26; 14:62); establish consistent Persian phrasing across all three occurrences now. |
Mark 9
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 9:7 | Sonship of Christ; Transfiguration | Moses; Elijah | Deuteronomy 18:15 (“listen to him” — the prophet like Moses); Psalm 2:7 (echo) | Moses-typology: Jesus as the greater-than-Moses prophet foretold; connects to baseline’s inspiration_of_scripture and fulfillment_of_prophecy entries and to the finality-of-prophets caution already flagged for payambar. |
| Mark 9:11-13 | Fulfillment of Prophecy | Elijah; John the Baptist | Malachi 4:5-6 | Direct development of the ch.6 Elijah-typology; Jesus identifies John as its fulfillment. |
| Mark 9:48 | Jesus’ Authority over Sin (judgment) | — | Isaiah 66:24 (worm does not die, fire not quenched) | Direct echo of Isaiah’s closing judgment oracle in the Gehenna description; connects to baseline’s jahannam risk note. |
Mark 10 (Core Passage Chapter)
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 10:6-8 | Necessity of the Cross (creation-order background) | Adam; Eve | Genesis 1:27; Genesis 2:24 | Parallel to Romans 5:12-21’s Adam typology (different argument — marriage order here vs. federal headship there — but both curricula draw on the same Genesis narrative). Citation format for Genesis must match the baseline’s own book-name convention (پیدایش). |
| Mark 10:19 | Law | Moses | Exodus 20:12-16; Deuteronomy 5:16-20 (Decalogue) | Reuse ناموس exactly. |
| Mark 10:45 | Ransom for Many; Suffering Servant | Son of Man | Isaiah 53:10-12 (the Servant bears the sin of many, pours out his life, makes intercession); typological background Exodus 21:30 (ransom price) and Leviticus 25 (kinsman-redeemer, redemption of slaves) | CRITICAL. The core passage’s theological anchor. Must be rendered consistently with Mark 14:24’s echo of the same Isaiah 53 background, and cross-referenced (thematically, not verbatim) to Romans’ atonement vocabulary (Romans 3:24-25 “redemption… propitiation”; Romans 5:6-9; Romans 8:32, “gave up his own Son”). See Section 4, Rule 5. |
| Mark 10:47-48 | Son of David; Messianic Promise | Bartimaeus | 2 Samuel 7:12-16 (Davidic covenant background); Isaiah 35:5-6 (eyes of the blind opened — a messianic-age healing sign) | Ties baseline’s davidic_covenant and messianic_promise entries directly to a healing narrative; teach as a direct messianic confession-act, not a generic royal-honorific address. |
Mark 11
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 11:9-10 | Messianic Promise; Kingdom Breaking In | the crowds | Psalm 118:25-26 (direct quotation: “Blessed is he who comes in the name of the LORD”) | Direct quotation; Psalm 118 recurs at 12:10-11, so rendering must be locked for consistency within Mark itself. |
| Mark 11:17 | Jesus’ Authority; Kingdom of God | — | Isaiah 56:7 (“a house of prayer for all nations”); Jeremiah 7:11 (“den of robbers”) | Combined quotation. Isaiah 56:7’s “all nations” clause ties directly to baseline’s universal_scope_of_gospel and unity_of_jews_and_gentiles entries — flag for the same pastoral care given Iran’s anti-Israel state rhetoric. |
Mark 12
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 12:1-11 | Necessity of the Cross; Messianic Secret | the tenants; the son | Isaiah 5:1-7 (the vineyard song); Psalm 118:22-23 (the rejected stone becomes the cornerstone) | The vineyard parable directly typifies Israel’s rejection of God’s Son. Psalm 118:22 is part of the same “rejected stone” messianic testimonia tradition Paul draws on in Romans 9:33 (which combines Isaiah 28:16 and Isaiah 8:14) — not a verbatim shared citation, but the same stone-motif; see Section 4, Rule 2. |
| Mark 12:19 | Law; Resurrection | the Sadducees; Moses | Deuteronomy 25:5-6 (levirate marriage) | Background for the resurrection debate that follows. |
| Mark 12:26 | Resurrection of Christ (proof-text pattern) | Abraham, Isaac, Jacob | Exodus 3:6 (“I am the God of Abraham…”) | ”God of the living” argument; Abraham also central to Romans 4’s faith-typology (a different argument, same patriarch) — flag as a shared figure, not a shared citation. |
| Mark 12:29-31 | Faith and Discipleship | Moses | Deuteronomy 6:4-5 (the Shema); Leviticus 19:18 (love your neighbor as yourself) | Leviticus 19:18 is quoted verbatim in Romans 13:9 as well. This is a direct shared-citation case requiring identical Persian rendering across both curricula. See Section 4, Rule 1 (mandatory). |
| Mark 12:36 | Lordship of Christ; Messianic Promise | David | Psalm 110:1 (“The LORD said to my Lord, ‘Sit at my right hand’“) | Key messianic-deity argument (David’s own son called “Lord”); the same psalm underlies (without being directly quoted in) Romans 8:34’s “at the right hand of God” language. See Section 4, Rule 2. |
Mark 13
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 13:14 | Eschatology (necessity of coming events) | — | Daniel 9:27; 11:31; 12:11 (“the abomination of desolation”) | Apocalyptic allusion with a layered historical (Antiochus Epiphanes) and eschatological application; requires background teaching, not a simple rendering choice. |
| Mark 13:24-25 | Eschatology | — | Isaiah 13:10; Isaiah 34:4 (sun and moon darkened, stars falling — Day-of-the-LORD judgment language) | Cosmic-judgment imagery drawn from prophetic Day-of-the-LORD oracles. |
| Mark 13:26 | Son of Man; Messianic Secret climax pole | Son of Man | Daniel 7:13-14 | Direct reuse of the title’s apocalyptic-glory pole; must render identically to 8:38 and 14:62. |
Mark 14
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 14:18 | Necessity of the Cross | Judas | Psalm 41:9 (“one who ate my bread has lifted his heel against me”) | Betrayal-by-a-friend allusion. |
| Mark 14:24 | Ransom for Many; Necessity of the Cross | — | Exodus 24:8 (blood of the covenant); Jeremiah 31:31-34 (new covenant); Isaiah 53:12 (poured out for many) | CRITICAL. Direct thematic continuation of 10:45’s πολλῶν and Isaiah 53 background; must render خون عهد consistently within Mark and be taught alongside Romans’ atonement vocabulary (فیض، عدالت محسوبشده) as flowing from the same Isaiah 53 source, though not a verbatim shared citation with Romans. |
| Mark 14:27 | Necessity of the Cross | the Twelve | Zechariah 13:7 (“I will strike the shepherd, and the sheep will be scattered”) | Direct quotation predicting the disciples’ scattering; connects to the shepherd-typology of 6:34. |
| Mark 14:62 | Messianic Secret climax; Deity and Sonship of Christ | Jesus; the high priest | Daniel 7:13-14; Psalm 110:1 (combined) | The narrative’s central self-disclosure verse — fuses both messianic testimonia threads (Son of Man/clouds of Daniel 7 + seated-at-the-right-hand of Psalm 110). Must render identically to Daniel 7 occurrences (8:38; 13:26) and Psalm 110 occurrence (12:36). |
Mark 15
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 15:24 | Necessity of the Cross | the soldiers | Psalm 22:18 (they divided his garments) | Direct fulfillment-quotation; part of the Psalm 22 cluster running through the whole crucifixion narrative. |
| Mark 15:29 | Necessity of the Cross | mockers | Psalm 22:7 (wagging their heads) | Same Psalm 22 cluster. |
| Mark 15:34 | Necessity of the Cross; Suffering Servant | Jesus | Psalm 22:1 (“My God, my God, why have you forsaken me?”) | Direct quotation (preserved Aramaic transliteration per glossary Section C); CRITICAL per doctrine registry — the cry of dereliction. |
| Mark 15:36 | Necessity of the Cross | a bystander | Psalm 69:21 (sour wine to drink) | Same Psalm-of-suffering cluster as Psalm 22. |
Mark 16
Reviewed. No new OT quotation in the core (undisputed) text (16:1-8). The longer ending (16:9-20), textually disputed per the semantic analysis, contains one item of note:
| Passage | Theme | Related Character | OT/NT Connection | Translation Sensitivity |
|---|
| Mark 16:19 (disputed longer ending) | Lordship of Christ | Jesus | Psalm 110:1 (session at the right hand — echo, not quotation) | If the destination platform’s house style includes the longer ending (bracketed/footnoted per established convention), render the right-hand imagery consistent with 12:36 and 14:62. |
Section 2 — Messianic Titles and Typological Threads (Whole-Book View)
| Typological Thread | OT Root | Development Across Mark | Doctrine Connection |
|---|
| Son of Man (apocalyptic authority) | Daniel 7:13-14 | 2:10, 28 (implicit); 8:31, 38; 9:9, 12, 31; 10:33-34, 45; 13:26; 14:21, 41, 62 | Suffering Servant and Son of God; Messianic Secret; Necessity of the Cross |
| Suffering Servant | Isaiah 42:1; 52:13–53:12 | 1:11 (allusion); 9:12 (“as it is written of him”); 10:45; 14:24; ch.15 passion narrative broadly | Ransom for Many; Necessity of the Cross; Jesus as Suffering Servant |
| Davidic King | 2 Samuel 7:12-16; Psalm 110:1 | 2:25-26; 10:47-48; 11:10; 12:35-37 | Messianic Promise; Davidic Covenant (baseline) |
| Moses, the Greater Prophet | Deuteronomy 18:15 | 9:2-8 (Transfiguration); 9:7 (“listen to him”) | Inspiration of Scripture; Fulfillment of Prophecy |
| Elijah/Forerunner | Malachi 3:1; 4:5-6 | 1:2-3, 6-8; 6:15; 9:11-13 | Fulfillment of Prophecy |
| Shepherd-King | Ezekiel 34; Numbers 27:17; Zechariah 13:7 | 6:34; 14:27 | Suffering Servant and Son of God; Necessity of the Cross |
| Passover Lamb (implicit) | Exodus 12:1-13 | 14:1, 12, 14, 16 (Passover setting of the Last Supper) | Necessity of the Cross; Ransom for Many |
| Rejected Stone | Psalm 118:22-23; (cf. Isaiah 28:16; 8:14) | 12:10-11 | Necessity of the Cross; Messianic Secret |
Section 3 — Parallels to the Romans Curriculum
The following table lists every point where Mark’s OT citations, characters, or theological vocabulary intersect with material already fixed in the baseline Romans Language Package. “Shared citation” means the same OT verse is quoted (near-)verbatim in both curricula; “shared theme/figure” means the same theological source or biblical character is in view without an identical quotation.
| Mark Reference | Romans Reference | Relationship | Rendering Implication |
|---|
| Mark 12:31 (Leviticus 19:18) | Romans 13:9 (Leviticus 19:18) | Shared citation (verbatim) | Mandatory identical Persian rendering — see Section 4, Rule 1. |
| Mark 12:10-11 (Psalm 118:22-23) | Romans 9:33 (Isaiah 28:16; 8:14) | Shared theme (rejected-stone messianic testimonia), different OT verses | Keep “stone” (سنگ) vocabulary consistent in register across both, though the underlying verses differ — see Section 4, Rule 2. |
| Mark 4:12 (Isaiah 6:9-10) | Romans 11:8 (Deuteronomy 29:4/Isaiah 29:10 blend) | Shared theme (spiritual blindness/hardening), overlapping OT source pool | See Section 4, Rule 3. |
| Mark 12:36 (Psalm 110:1) | Romans 8:34 (echo, not direct quotation) | Shared theme/source text | Keep “right hand” (دست راست) imagery consistent — see Section 4, Rule 4. |
| Mark 10:45; 14:24 (Isaiah 53) | Romans 4:25; 5:6-9; 8:32 (Isaiah 53 echoes) | Shared theological source (not verbatim shared citation) | See Section 4, Rule 5. |
| Mark 10:6-8 (Genesis 1:27; 2:24) | Romans 5:12-21 (Genesis 2-3 background, Adam typology) | Shared source narrative, different argument | Genesis book-name/citation format must match baseline exactly (پیدایش). |
| Mark 12:26 (Exodus 3:6, Abraham/Isaac/Jacob) | Romans 4:1-25 (Abraham as father of faith) | Shared patriarch, different argument | No rendering rule required beyond consistent proper-name forms (ابراهیم, اسحاق, یعقوب). |
| Mark 2:25-26; 10:47-48; 11:10; 12:35-37 (David) | Romans 1:3; 4:6-8 (David); 9:5; 15:12 (David) | Shared character across both curricula | Reuse داوود (Davud) exactly, per baseline. |
| Mark 11:17 (Isaiah 56:7, “all nations”) | Romans’s universal_scope_of_gospel and unity_of_jews_and_gentiles doctrines | Shared theme | Same pastoral-framing caution regarding Iran’s state-level Israel rhetoric applies. |
| Mark’s Son of Man / Suffering Servant Christology | Romans’s sonship_of_christ, deity_of_christ, messianic_promise doctrines | Shared doctrinal category, distinct titles | Ensure Mark’s پسر انسان teaching notes and Romans’s پسر خدا teaching notes are cross-referenced so learners see these as complementary titles of one Christ, not competing claims. |
Section 4 — Rendering-Consistency Rules for Shared Quotations
Rule 1 — Leviticus 19:18 (Mark 12:31 / Romans 13:9).
This verse must be rendered with identical Persian wording in both curricula’s materials. Lock the rendering at Phase 2 Step 1 of the Mark project and cross-check against the existing Romans 13:9 rendering before finalizing; any future revision to one occurrence requires an equivalent revision to the other, with a version-increment note in both translation memories.
Rule 2 — Psalm 110:1 and the “rejected stone” testimonia cluster (Mark 12:10-11, 12:36, 14:62 / Romans 9:33, 8:34).
Mark and Romans do not quote identical stone/right-hand verses, but both draw on the same first-century messianic proof-text tradition. Maintain a single, consistent Persian rendering of “سنگ” (stone) imagery and “دست راست” (right hand) imagery across all occurrences in Mark itself, and note the thematic (not verbatim) link to the Romans package in teaching material so learners recognize the shared messianic-argument pattern across both books.
Rule 3 — Isaiah 6:9-10 and its echo (Mark 4:12 / Romans 11:8).
Render the “seeing but not perceiving, hearing but not understanding” formula in Mark 4:12 using vocabulary (دیدن/دل/شنیدن) that remains recognizably consistent with whatever Persian rendering the Romans package uses for its related Romans 11:8 quotation, even though the two are not verbatim-identical OT texts. This preserves the intertextual link a Persian-reading learner moving between both curricula should be able to perceive.
Rule 4 — Genesis and other shared-narrative citations (Mark 10:6-8 / Romans 5:12-21; Mark 12:26 / Romans 4:1-25).
All citations of Genesis or Exodus material shared in theme (not necessarily verbatim quotation) between Mark and Romans must use the established Persian book-name conventions already fixed in 12_ai_translation_requirements.md (پیدایش for Genesis; extend the same convention to خروج for Exodus — see Section 5). Character names (آدم, حوا, ابراهیم, اسحاق, یعقوب) must match baseline transliteration forms exactly.
Rule 5 — Isaiah 53 and the Ransom/Atonement word-field (Mark 10:45, 14:24 / Romans 3:24-25, 4:25, 5:6-9, 8:32).
فدیه (ransom, Mark 10:45) and its surrounding vocabulary (بسیاری/many, خون عهد/blood of the covenant) must be taught, in every occurrence, as drawing on the same Isaiah 53 Suffering Servant well that already underlies the baseline’s grace, salvation, and imputed_righteousness entries. This is a doctrinal/teaching consistency rule, not a verbatim-citation rule, since Romans does not directly quote Isaiah 53 in the same form Mark echoes it.
Rule 6 — Proper names and titles.
All proper names appearing in both curricula (عیسی, مسیح, داوود, اسرائیل, ابراهیم, موسی, اشعیا) must use the exact baseline transliteration and Persian spelling already fixed in translation_memory.json. No curriculum-specific spelling variants are permitted.
Rule 7 — Book-name citation format.
Citation format for chapter/verse references follows the baseline’s already-established convention (e.g., رومیان ۳:۲۳ or Latin-numeral equivalent per house style, confirmed with the destination platform). Section 5 below extends the baseline’s book-name table with the additional OT/NT books Mark’s citations require.
Section 5 — Extended Book-Name Table (New Books Required by Mark’s Citations)
The baseline 12_ai_translation_requirements.md already fixes: رومیان (Romans), پیدایش (Genesis), مزامیر (Psalms), اشعیا (Isaiah), حبقوق (Habakkuk), یوئیل (Joel). Mark’s citations require the following additions, to be merged into that same house-style table:
| Book | Persian Name | Transliteration |
|---|
| Exodus | خروج | Khoruj |
| Leviticus | لاویان | Laviyan |
| Numbers | اعداد | A’dad |
| Deuteronomy | تثنیه | Tasniyeh |
| 1 Samuel | اول سموئیل | Avval-e Samu’il |
| 2 Samuel | دوم سموئیل | Dovvom-e Samu’il |
| Jeremiah | ارمیا | Ermiya |
| Ezekiel | حزقیال | Hezqiyal |
| Daniel | دانیال | Daniyal |
| Zechariah | زکریا | Zakariya |
| Malachi | ملاکی | Malaki |
This cross-reference analysis extends analysis/07_semantic_analysis.md and analysis/08_core_glossary.md. All Critical and High risk citations identified above (Mark 10:45; 14:24; 14:62; 15:34; 12:10-11) require human theologian review before Phase 2 translation, per the escalation rules in 12_ai_translation_requirements.md. See analysis/10_biblical_theme_map.md for the accompanying whole-book theme structure.