Biblical Theme Map
Biblical Theme Map — Galatians (Προς Γαλάτας) for Greek
Curriculum: Galatians · Core passage: Galatians 2:15-21 · Baseline: Greek Romans Language Package (v1) Generated: 2026-07-07
The letter’s theme structure
Galatians argues one thesis through three movements:
ONE GOSPEL (chs. 1-2) — biographical defense
└─ received by revelation, recognized in Jerusalem, defended at Antioch
└─ thesis stated: justification by faith, not works of law (2:15-21)
PROMISE OVER LAW (chs. 3-4) — scriptural argument
└─ the Galatians' own experience of the Spirit (3:1-5)
└─ Abraham justified by faith; the nations blessed in him (3:6-9)
└─ curse of the law borne by Christ (3:10-14)
└─ promise precedes and outlasts law; law as παιδαγωγός (3:15-29)
└─ from slaves to sons: adoption, Abba (4:1-11)
└─ two covenants: Hagar and Sarah (4:21-31)
FREEDOM IN THE SPIRIT (chs. 5-6) — ethical outworking
└─ stand in freedom; circumcision profits nothing (5:1-12)
└─ freedom serves through love; flesh vs Spirit (5:13-26)
└─ burden-bearing, sowing and reaping, new creation (6:1-18)
The core passage (2:15-21) is the hinge: it closes the biography and opens the theology.
Theme-by-theme map across Scripture
| Galatians theme | Within Galatians | Old Testament roots | Wider New Testament | Greek-specific note |
|---|---|---|---|---|
| One gospel, no other | 1:6-9; 2:5, 14 | Deuteronomy 13 (test of rival words) | 2 Corinthians 11:4; Jude 3 | ἕτερον/ἄλλο distinction survives in formal Greek — preserve |
| Justification by faith | 2:16-21; 3:6-14, 24; 5:4-5 | Genesis 15:6; Habakkuk 2:4; Psalm 143:2 | Romans 3-5 (the baseline’s core); Philippians 3:9; James 2 (complementary angle) | Anchor to λογίζομαι/Genesis 15:6 LXX, readable in Paul’s own words; guard against theosis-absorption and colloquial “vindication” |
| Promise and covenant | 3:15-29 | Genesis 12:3; 13:15; 17:8; 22:18; Exodus 12:40 | Romans 4:13-16; Hebrews 6:13-18 | επαγγελία→υπόσχεση anchor; διαθήκη wordplay native to Greek at 3:15 |
| Curse borne, redemption won | 3:10-14; 4:4-5 | Deuteronomy 21:23; 27:26; Leviticus 18:5 | Romans 8:3-4; 2 Corinthians 5:21; 1 Peter 2:24 | εξαγοράζω trap → λύτρωση vocabulary |
| Law as temporary custodian | 3:19-25; 4:1-5 | Exodus-Deuteronomy (the giving of the law) | Romans 7:7-12 (law holy yet powerless); Hebrews 8-10 (old covenant superseded) | παιδαγωγός inversion trap (educator vs custodial slave) |
| Adoption and sonship | 3:26-4:7 | Exodus 4:22 (Israel my son); 2 Samuel 7:14 | Romans 8:14-17; Ephesians 1:5; John 1:12 | Αββά, Πατέρα verbatim per baseline; distinguish from Christ’s unique Sonship |
| The Spirit received by faith | 3:2-5, 14; 4:6; 5:16-25 | Joel 2:28-29; Ezekiel 36:26-27 | Acts 2; Romans 8; John 14-16 | Πνεύμα capitalization carries the σάρκα/Πνεύμα contrast |
| Freedom | 4:21-31; 5:1, 13 | Exodus (liberation from slavery as the OT master-pattern) | John 8:31-36; Romans 6:15-23; 1 Peter 2:16 | ελευθερία national-word loading — fence political and libertine readings |
| Flesh vs Spirit | 5:13-26; 6:7-8 | Genesis 6:3; Jeremiah 17:5-9 (trust in flesh) | Romans 8:1-13; 1 Corinthians 3:1-3 | Anti-dualism note obligatory (not body-vs-soul) |
| Love fulfills the law | 5:6, 13-14, 22 | Leviticus 19:18 | Romans 13:8-10; Matthew 22:34-40; 1 Corinthians 13 | Shared-quotation alignment with Romans 13:9 |
| New creation | 6:15 | Isaiah 43:18-19; 65:17 | 2 Corinthians 5:17; Revelation 21:1-5 | καινή δημιουργία anchor against “new construction” misreading |
| Cross and boasting | 2:20; 3:1; 5:11, 24; 6:12-14, 17 | Deuteronomy 21:23 (the hanged one) | 1 Corinthians 1:18-2:2; Philippians 3:3-8 | στίγματα (6:17) → σημάδια anchor; “το καύχημά μου ο σταυρός” idiomatic asset |
| Sowing and reaping | 6:7-10 | Hosea 8:7; 10:12; Job 4:8 | 2 Corinthians 9:6; Matthew 13 | Personal divine judgment, not karma-mechanism |
| Community of burden-bearers | 6:1-6, 10 | Leviticus 19:17-18 | Romans 15:1-3; James 5:19-20; 1 Thessalonians 5:14 | βάρη/φορτίο distinction survives naturally |
Progressive revelation through the letter
- Before faith came (3:23): humanity — Jew under Torah, Gentile under the στοιχεῖα — confined and guarded.
- The fullness of time (4:4): the Son born of a woman, born under law, to redeem those under law.
- Now that faith has come (3:25): no longer under the custodian; sons, heirs, Spirit-indwelt.
- The age to come pressing in: new creation (6:15), the Jerusalem above (4:26), the harvest of eternal life (6:8).
This before/after structure is the letter’s engine; every chapter participates in it (chs. 1-2 biographically, 3-4 theologically, 5-6 ethically).
How Galatians relates to the Romans curriculum (the language baseline)
Galatians is Romans’ polemical older sibling: the same doctrine of justification argued against a live crisis rather than as a systematic exposition. For teaching order in this language: Romans provides the framework (the baseline package); Galatians provides the urgency and the pastoral edge — what is at stake when the gospel of grace is compromised (1:6-9; 2:21; 5:2-4). Terms, quotations, and doctrinal decisions established in the Romans package apply unchanged; Galatians adds the freedom cluster (ελευθερία), the law-as-παιδαγωγός frame, and the new-creation climax.
Chapter coverage check
All six chapters are mapped: ch. 1 (one gospel, calling), ch. 2 (gospel truth defended, thesis), ch. 3 (promise, curse, custodian), ch. 4 (adoption, στοιχεῖα, two covenants), ch. 5 (freedom, flesh/Spirit, love), ch. 6 (burden-bearing, sowing, new creation, cross-boasting). No chapter is without mapped themes.