KJV Study

A scholarly web application for deep study of the King James Bible — pairing the 1769 Cambridge text with original language tools, AI-powered commentary, and classical typography inspired by Edward Tufte.

kjvstudy.org

Overview

KJV Study provides the complete King James Bible (31,102 verses) alongside an extensive suite of research tools: interlinear Hebrew and Greek analysis, Strong's Concordance, cross-references, topical indexes, genealogies, reading plans, and verse-by-verse AI commentary. The entire application is served as a fast, accessible web experience with a full REST API.

git clone https://github.com/kennethreitz/kjvstudy.org.git
cd kjvstudy.org
docker compose up
# → http://localhost:8000

Features

Scripture

31,102 verses from the 1769 Cambridge KJV edition — browse all 66 books
Full-text search with SQLite-backed concordance
Cross-references throughout Scripture
Red Letter edition highlighting the words of Christ
Verse of the Day and Random Verse

Original Languages

Interlinear Bible — word-by-word Greek (NT) and Hebrew (OT) with morphological tagging, grammatical parsing, root word exploration, and occurrence tracking
Strong's Concordance — 8,674 Hebrew and 5,624 Greek entries with definitions, transliterations, pronunciation, and derivations

Commentary

AI-powered verse-by-verse theological analysis with chapter overviews, book summaries, historical context, word studies, and reflection questions — generated for all 66 books.

Study Resources

| | | |---|---| | Theology | Christology, Soteriology, Eschatology, Pneumatology | | People | Twelve Apostles, Women of the Bible, Prophets, Angels | | Themes | Parables, Covenants, Names of God, Fruits of the Spirit | | History | Timeline, Maps, Festivals | | Guides | Gospel, Salvation, New Believer, Prayer & Faith, &c. | | Plans | One-Year Bible, 90-Day NT, Chronological, &c. |

39 resource categories, 36 study guides, 36 topical indexes, 12 reading plans, 25+ biblical stories (with children's versions).

Family Trees

429+ biblical figures across 77+ generations from Adam through the New Testament — with interactive ancestor/descendant navigation, biographical data, and GEDCOM-based genealogy.

PDF Export

Downloadable PDFs for verses, chapters, books, study guides, stories, and reading plans.

Accessibility

Keyboard navigation (Vim-style and arrow keys), screen reader support, text-to-speech, dark mode with system preference detection, and adjustable font sizes. See /accessibility.

Architecture

kjvstudy_org/
├── server.py                # FastAPI application
├── kjv.py                   # Bible text access
├── routes/                  # 16 route modules
├── utils/                   # Search, PDF, commentary helpers
├── templates/               # 77 Jinja2 templates
├── static/                  # Tufte CSS, ET Book fonts, JS
└── data/                    # Bible text, commentary, interlinear,
                             # Strong's, cross-references, topics,
                             # study guides, reading plans, stories,
                             # genealogy, timeline, and more

| | | |---|---| | Backend | FastAPI, Python 3.13, Gunicorn | | Frontend | Tufte CSS, ET Book, vanilla JS | | Data | JSON, SQLite (search), gzip (interlinear) | | PDF | WeasyPrint | | Packaging | uv | | Infrastructure | Docker, nginx, Fly.io | | CI/CD | GitHub Actions |

API

Full REST API with interactive documentation.

GET /api/verse/{book}/{chapter}/{verse}
GET /api/verse-range/{book}/{chapter}/{start}/{end}
GET /api/books/{book}/chapters/{chapter}
GET /api/search?q={query}
GET /api/interlinear/{book}/{chapter}/{verse}
GET /api/strongs/{number}
GET /api/cross-references/{book}/{chapter}/{verse}
GET /api/topics/{topic}
GET /api/reading-plans/{plan}
GET /api/verse-of-the-day
GET /api/bible

All endpoints support book name abbreviations (Gen, Ex, Mt, Rev, &c.).

Development

# With Docker (recommended)
docker compose up

# Without Docker (requires Python 3.13+ and uv)
uv sync
uv run kjvstudy-org

# Tests (941 tests across 16 files)
uv run pytest tests/ -v

# Data validation
uv run python scripts/validate_data.py

Deployment

Deployed to Fly.io with fly deploy. Production runs behind nginx for static asset caching, with Gunicorn/Uvicorn serving the FastAPI application. Health checks, auto-recovery, and HTTPS are configured out of the box.

License

ISC License. See LICENSE.

"Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth." — 2 Timothy 2:15

Kjvstudy.org

Install / Use

README