BibCrit
Biblical Textual Criticism
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Research tools, SBL/BibTeX export, corpus API access
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PhD Candidate
Dissertation-level analysis, methodology guidance, citations
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Student / Learner
Guided exploration, plain-language results, key concepts
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Scholarly tools
Corpus-grounded textual criticism.
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ETCBC (MT) · LXX Rahlfs-1935 · DSS 1QIsaᵃ · Samaritan Pentateuch · MorphGNT
SBL / BibTeX export Open Data API DOI: 10.5281/zenodo.19358424 Apache 2.0 14 tools
Research tools — ordered by analytical depth
Dissertation research tools
Your research assistant for
dissertation-level textual analysis.
All 9 tools · methodology guidance · SBL/BibTeX export · open data API
Export citations Methodology notes Discovery feed DOI: 10.5281/zenodo.19358424
Dissertation starting point
Not sure where to start? Pick a well-known crux passage and run it through Divergence + Back-Translation first.
info Methodology note: All analyses cite their scholarly framework (Tov, Aejmelaeus, Ulrich). Results are AI-generated and should be cross-checked against BHS critical apparatus and the Göttingen LXX for peer-reviewed publication. See full methodology →
All tools — balanced view
Explore the manuscripts
Discover the ancient texts
behind your Bible.
No Hebrew or Greek required — AI explains everything in plain language
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schoolThese are AI-generated starting points for learning — not finished academic arguments. Use them to understand a passage, then engage with your textbook and instructor.

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BibCrit

Biblical Textual Criticism

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MT/LXX Divergence Analyzer

Enter a verse or chapter and get every word-level difference between the MT (Masoretic Text) and LXX (Septuagint), classified and scored.Identify Vorlage divergences pericope by pericope. Each variant is tagged by mechanism — translation technique, inner-Greek error, or divergent Vorlage — giving you citable data points for your dissertation methodology.See exactly where the Hebrew Bible and the Greek Bible say something different, with plain-English explanations of why each difference exists.

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Back-Translation Workbench

Explore the Hebrew that may lie behind an LXX (Septuagint) passage, word by word, separating translator’s choices from possible different readings.Suggested Hebrew behind your LXX passage, word by word, with the basis for each and status checked by code against the MT and BibCrit’s scrolls. Hypotheses to test, not results.Work backwards from the Greek to see what the Hebrew may have said, and where we can’t tell whether the translator simply chose differently.

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Ancient Witness Bridge

Compare a passage across MT, LXX, Dead Sea Scrolls, and Samaritan Pentateuch. See which tradition each ancient witness sides with and what independent readings it preserves.Five ancient witnesses on one screen — Dead Sea Scrolls through Peshitta. Essential for any chapter tracking textual pluralism before the rabbinic standardization of the Hebrew Bible.Discover whether the Dead Sea Scrolls match your Bible — and what the oldest surviving manuscripts on earth actually say.

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Manuscript Transmission

See how a biblical book's text was transmitted — from its proto-text through the Masoretic Text, Septuagint, Dead Sea Scrolls, and ancient translations.A hand-curated diagram of how the textual traditions of a book relate, with a published source and a relation type for every link, plus model-written commentary. An orientation diagram, not a stemma reconstructed from collation.See how your Bible's text was passed down — the main traditions it branched into, from the earliest manuscripts to the editions used today.

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NT Use of OT Analyzer

Enter a New Testament reference to identify every OT allusion, determine whether the NT author cited MT or LXX, and understand the textual implication.Determine which OT text form each NT citation uses — Hebrew, LXX, or independent — applying Beale-Carson, Stanley, and Hays methodology. The cornerstone analysis for any dissertation on NT use of OT or Pauline hermeneutics.Find every Old Testament quote hidden in a New Testament passage — and learn whether the author was citing the Hebrew Bible or the Greek translation.

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auto_stories

Targum Comparator

Compare Targum Onkelos and Jonathan against MT and LXX with word-level analysis of Memra, anthropomorphism avoidance, and targumic expansions.Corpus-backed Aramaic witness analysis for Torah and Prophets — includes Memra substitutions, targumic expansions, and messianic reinterpretation.Discover how ancient Jewish translators rendered the Hebrew Bible into Aramaic — and what theological changes they made along the way.

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fact_check

NT Textual Tradition Analyzer

Witness-group support, individual witnesses, a text-stability judgement, and a full variant register for any NT passage.SBLGNT-grounded textual analysis that treats text-types as heuristics, separates attested evidence from model interpretation, and gives extended treatment to the major disputed passages.Discover how different ancient manuscripts of the New Testament vary — and what scholars think the original text said.

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LXX Manuscript Witnesses

Significant divergences among the great LXX uncials — Vaticanus (B), Sinaiticus (ℵ), Alexandrinus (A) — for any passage, with confidence scores and lacuna flags.Apparatus-grounded analysis of inter-codex divergence (B/ℵ/A) per passage: locus, competing readings, text-critical significance, and per-finding confidence — verify against Göttingen and Rahlfs-Hanhart.See where the oldest complete Greek Bibles disagree with each other — and what those differences tell us about the text.

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Scribal Tendency Profiler

See how closely an LXX book follows the Hebrew, measured by code, with AI commentary on literalness, anthropomorphism, messianic readings, harmonization and paraphrase.Code-computed measures of your LXX book against the Hebrew and across all books, with AI commentary and cited examples. A starting point, not a citable profile.See how the ancient translators of your book worked: whether they stayed close to the Hebrew, with measures from the texts and examples to check.

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calculate

Numerical Discrepancy Modeler

Genealogical ages and census figures differ across MT (Masoretic Text), LXX (Septuagint), and SP (Samaritan Pentateuch). See the numbers, read from the texts by code, and competing explanations of the differences.See every number in your passage across MT, LXX and SP, read from the texts by code, with the differences computed and competing explanations discussed by AI.See why different Bibles list different ages and numbers: the numbers come straight from the ancient texts, with competing explanations of the differences.

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psychology

Theological Revision Detector

Scan a book or passage for theologically motivated textual changes — anthropomorphism avoidance, messianic heightening, harmonization, and more.Flag passages where ideological motives likely shaped the text — anthropomorphism avoidance, messianic heightening, polemical revision — with motivation taxonomy and comparanda for your redaction-critical argument.Find places where ancient scribes may have quietly changed the text for theological reasons — and what those changes reveal about their beliefs.

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church

Patristic Citation Tracker

Get AI suggestions of how Church Fathers cited a passage and what text form they may reflect. Unchecked: verify each one in the editions.A starting list of possible patristic citations of your passage through the 5th century, with text-form suggestions. Unchecked: verify before citing.See how early Church writers may have used your passage, as AI suggestions to look up in the original sources.

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Chiasm Detector

Test whether a passage has a concentric structure, parallel panels or an inclusio. The AI proposes; code checks the repeated words.Test a proposed chiastic structure in your pericope: the AI proposes units and a centre, and code counts the shared lemmas and compares the pairing with every alternative.Does your passage have a mirror-image structure? Most don't. See what the AI proposes and whether the repeated words back it up.

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Source & Redaction Analysis

Read Pentateuchal passages under three competing models of composition — documentary, supplementary and P/non-P — side by side, with the points where they disagree.Compare how the documentary, supplementary and P/non-P models divide and assign your pericope, starting from model-neutral observations (divine names, doublets, narrative tensions), with the contested criteria flagged.Learn how scholars explain the different voices woven into a passage of the Pentateuch — and why they still disagree about how it was put together.

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Second Temple Literature Bridge

Map allusions, echoes, and parallels between any canonical passage and five Second Temple works — 1 Enoch, Jubilees, Sirach, 4 Ezra, and Tobit. No open tool covers this.Assess directionality, confidence, and DSS/NT significance for every STL connection — with Nickelsburg, VanderKam, and Collins citations for each allusion found.Discover how ancient Jewish writers read and expanded your Bible passage — and why their interpretations matter for the Dead Sea Scrolls and New Testament.

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✦ Discovery Feed

Browse model-generated readings of divergences, scribal patterns, and numerical traditions — no reference needed.

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