Executive Summary — Gospel of John Language Package (English → Japanese)

Why it matters: John concentrates more Critical-risk Christological doctrine per chapter than Romans does across its entire sixteen chapters. The core passage (John 3:1–21, the New Birth discourse) sits inside a book whose central rhetorical device — the seven “I Am” statements and their two absolute, predicate-less counterparts — depends on a grammatical echo of Exodus 3:14 that is structurally invisible in ordinary Japanese sentence construction. Without deliberate, repeated cross-referencing, a Japanese reader can read all seven statements as inspirational metaphor and miss John’s central deity claim entirely. This Language Package extension exists to prevent that failure mode, alongside several sharp collisions with Japan’s dominant Shinto and Buddhist vocabulary.

Key findings:

• 29 Critical-risk and 25 High-risk terms are newly required or reused for this book (of ~80 total glossary entries in assets/translation_memory.json), versus a comparatively lighter Critical/High load in the Romans baseline — reflecting John’s Christological density.
• At the doctrine level, 11 of 27 doctrines are Critical risk and 12 are High risk (per assets/doctrine_risk_registry.json), with 23 of 27 doctrines requiring mandatory human theologian review and the remaining 8 requiring native speaker review; zero doctrines qualify for automated-only review, a stricter posture than the Romans baseline.
• Four genuinely new risk categories appear that have no Romans precedent: the Logos title (ことば, risk of 言霊/kotodama resonance), the seven “I Am” statements as a coordinated set, the Paraclete/Counselor (助け主, risk of sounding like a subordinate assistant), and the Father-Son ontological unity (一つ, risk of collapsing into 和/wa social harmony).
• The core passage itself concentrates five of the six highest-ranked ambiguities identified in the linguistic gap analysis: the ἄνωθεν “again/from above” double sense (3:3,7), the 御霊/聖霊 terminological inconsistency (3:5-8), the “lifted up” double meaning (3:14), 神の怒り (3:36), and the 因果応報 collision risk for 裁き (3:18-19).

Risks:

• Highest-severity risk: 新しく生まれる (“born again”) cannot carry ἄνωθεν’s dual Greek sense in a single Japanese phrase, and sits one step away from 輪廻転生 (reincarnation) and 生まれ変わる — Japan’s most culturally dominant and fluent religious-rebirth vocabulary. This is the single point of maximum doctrinal exposure in the entire curriculum.
• 永遠のいのち (“eternal life”) risks assimilation to 不老不死 (Daoist-derived immortality), a concept with strong contemporary pop-culture reinforcement among the curriculum’s likely younger, secular audience.
• 裁き (“judgment”) risks silent absorption into 因果応報 (karmic retribution), a folk concept embedded even in secular Japanese proverbial speech, which would erase John’s insistence on a personal God’s verdict tied to belief in the Son.
• The 御霊/聖霊 inconsistency (Shinkaiyaku’s own text uses the honorific-but-unqualified 御霊 in four key Spirit passages) creates a standing tension with the baseline’s absolute “never bare 霊” rule that must be managed by gloss, not by silent substitution.
• 一つ (“one,” Father-Son unity) risks collapsing into 和 (wa), and this risk is compounded by John reusing identical vocabulary for believers’ derivative unity in chapter 17 — a single vocabulary choice now carries two doctrines that must not be conflated.

Opportunities:

• John 17:3’s own definition of eternal life (“this is eternal life: that they may know you”) supplies a built-in scriptural corrective to the 不老不死 collision — the text itself, not an external teaching gloss, resolves its own translation risk.
• John 18:36 (“my kingdom is not of this world”) reinforces, rather than adds to, the baseline’s existing 神の国/神国日本 caution, giving teachers a text-internal resource rather than an external warning label.
• Japan’s established adult-heir adoption practice (already a positive bridge in the Romans baseline) and the genuine devotional weight of 十字架 and 受肉 as settled Shinkaiyaku vocabulary mean the translation foundation is sound; the work required is chiefly active teaching restoration, not term replacement.
• The absolute ἐγώ εἰμι’s rendering, わたしはある, is not an invented phrase but a direct match to Shinkaiyaku’s own Exodus 3:14 — one of the few places in this entire Language Package where the deity-claim echo genuinely survives translation intact, given the cross-reference is made explicit.

Recommended actions:

1. Mandate the Seven “I Am” Escalation Rule and the 御霊/聖霊 Consistency Rule (both specified in 12_ai_translation_requirements.md) as non-waivable Phase 2 gates — no segment containing these terms may pass automated review.
2. Require every occurrence of 新しく生まれる, 永遠のいのち, and 裁き in Phase 2 output to carry its designated teaching-note corrective (ἄνωθεν’s double sense; John 17:3’s definition; the personal-verdict-vs-karma distinction) before publication.
3. Route all 27 doctrines and all Critical/High terms per the review matrix in assets/doctrine_risk_registry.json and assets/translation_memory.json — 23 doctrines to human theologian, 8 to native speaker, none to automated-only.
4. Carry forward every Romans baseline forbidden substitution unchanged and layer the John-specific additions on top, per 12_ai_translation_requirements.md; never treat the two term databases as independently authoritative — they must agree by construction, since John’s inherited terms are copied verbatim from baseline.
5. Prioritize theologian review capacity toward John 3 (the core passage), John 10/14/17 (Father-Son unity and Paraclete), and John 20 (the climactic deity confession and the book’s thesis statement, 20:31) as the three highest-density risk zones for Phase 2 scheduling.