“Different Bibles” can mean different collections of books, different translations, or different underlying textual readings. Protestant Bibles usually contain 66 books and Catholic Bibles 73. Orthodox collections require more specific identification. These differences should be explained separately from the history of manuscript copying.
Which books count as scripture?
A canon is the collection a community recognizes as scripture. A book count identifies the scope of that collection, not how accurately it has been translated. Catholic teaching, for example, explicitly enumerates 46 Old Testament books and 27 New Testament books. [Catholic canon]
| Tradition | Usual count and qualification |
|---|---|
| Protestant | 66 books: 39 Old Testament and 27 New Testament. Some editions also print the Apocrypha separately. |
| Catholic | 73 books: 46 Old Testament and 27 New Testament, using the usual division of books. |
| Eastern Orthodox | A longer Old Testament collection. Contents, appendices and counting conventions vary, so identify the particular church and edition. |
| Ethiopian Orthodox Tewahedo | Traditionally 81 books. The broader canon and the grouping of its writings need explanation; a number alone does not describe every printed edition. |
What are the actual differences?
Catholic scripture includes Tobit, Judith, Wisdom, Sirach, Baruch, 1 and 2 Maccabees, and additional material in Esther and Daniel. Protestants generally place these writings outside their canon. Catholics commonly call them deuterocanonical; Protestant editions may use the term Apocrypha. The terminology reflects different judgments about authority. [Book list] [Protestant account]
Eastern Orthodox use reflects a longer Old Testament inheritance associated with the Greek Septuagint. Ethiopian tradition preserves an even broader collection, including Enoch. These are historically distinct collections; arranging them as a simple ladder from “incomplete” to “complete” would already assume a theological conclusion. [Orthodox account] [Ethiopian account]
Catholic, Protestant and Eastern Orthodox Bibles share the familiar 27-book New Testament. Matthew, Mark, Luke and John are four writings within that collection. They are not four alternative complete Bibles. The Ethiopian broader New Testament collection requires its own qualification. [New Testament] [Broader collection]
Why were different collections received?
Biblical writings circulated, were read in worship and acquired authority within communities over time. The recognition of a collection and the later drawing of its precise boundaries are related processes. Different churches inherited and defended different judgments about some writings.
Catholic teaching explains recognition of the canon through apostolic tradition. Protestant scholar Michael Kruger argues for a canon rooted in the early Christian movement and its authoritative writings. His account stresses continuity and early recognition rather than a wholly late imposition. These explanations should be attributed to their traditions and arguments. [Catholic teaching] [Kruger]
Historical inquiry asks which books were used, by whom, when and with what status. The theological question of whether God guided that process requires additional premises. A chronology of acceptance does not by itself settle inspiration. Likewise, a later formal declaration does not mean a book was first read as scripture on that date.
Why are there so many translations?
Translation is a new rendering of a source text into another language or form of language. Translators must make choices about words, idioms, sentence structure and clarity. A close rendering of the source’s structure may read awkwardly; a smoother explanation may make one interpretation more prominent. Both choices need to be assessed in context.
The King James Version, NIV and other English translations are not each the scriptures of a separate religion. Comparing two translations can expose an ambiguity, but sometimes it also exposes a difference in the manuscripts or textual editions used. Read the preface and notes before deciding which kind of difference you have found.
There is no useful fixed worldwide total of “versions” without a counting rule. Does it include partial translations, revisions, audio editions, study Bibles with the same translated text, or every language? A study edition’s extra commentary is not automatically an additional biblical book. Our reader uses the World English Bible and identifies that source.
What happens when manuscripts differ?
Hand-copied texts can differ through spelling, accidental omission, repetition, clarification or other changes. Textual criticism compares surviving witnesses and evaluates the relationships between them. The aim is to explain particular readings and recover earlier forms where the evidence permits, while acknowledging uncertainty.
Some variants are small; others involve substantial passages. A raw count does not tell a reader how many meaningful uncertainties remain. Peter Gurry’s study shows why definitions and methods matter when estimating New Testament variants. [Counting variants]
A concrete example is Mark 16:9–20, the longer ending. The US Catholic bishops’ Bible explains that vocabulary and style point to a writer other than Mark, while also affirming the passage’s canonical status in Catholicism. Historical attribution and ecclesial authority are distinct questions even within that one explanation. [Read the textual note]
Our Scripture reader flags the issue, but does not reproduce every publisher footnote. Use the linked publisher edition and a critical discussion when an argument depends on a disputed passage. The reading guide explains how context and genre affect interpretation as well.
What do scholars agree on, and where do they differ?
There is broad recognition that the surviving manuscripts are not word-for-word identical and that Christian traditions have different canonical boundaries. Scholars disagree over particular readings, dates, reasons for changes and the extent to which earlier forms can be reconstructed. Religious traditions also differ over how such findings relate to inspiration and authority.
Kruger’s work is an explicitly Christian argument about canonical authority. Gurry’s study addresses the narrower technical problem of counting textual variation. The Catholic bishops’ Mark note combines textual analysis with a canonical judgment. These sources do not answer identical questions, so they should not be treated as interchangeable votes for or against the Bible. [Canon] [Variants] [Mark]
When you encounter a striking claim, ask four things: Which books are included? Which translation is being used? Which manuscript reading is disputed? What difference does it make to the interpretation? Keeping those questions separate makes the discussion more precise and more useful.
What this establishes, and what it does not
This introduction explains categories and selected examples. It does not provide a critical edition, list every canon or translation, or decide the theological truth of a scripture. A textual difference needs to be evaluated in its own setting before broader conclusions are drawn.
Sources & reading notes
- Catechism of the Catholic Church, paragraphs 120–130
Official Catholic statement of the canon and its theological explanation. Counts use the usual division of books.
- Michael J. Kruger, “The Biblical Canon”
A Protestant scholarly account of canonical formation and authority. Its theological conclusions are identified as such.
- Orthodox Church in America: Canon of Scripture
An Eastern Orthodox explanation of the longer Old Testament canon. It is a denominational account, not a universal list for every Orthodox edition.
- Ethiopian Orthodox Tewahedo Church: The Holy Scriptures
The tradition’s account of its 81-book canon and broader scriptural inheritance.
- Peter J. Gurry, “The Number of Variants in the Greek New Testament: A Proposed Estimate” (2016)
New Testament Studies 62, 97–121. Methodological study of variant counts; a count alone does not establish theological consequences.
- USCCB, Mark 16, notes on the longer ending
An explicit example of distinguishing textual history, authorship and canonical reception.
- World English Bible publisher
Source and publisher context for the translation used in this site’s Scripture reader.
Sources checked 20 October 2026. Original editorial explanation; independent specialist review remains pending. Citing a scholar does not imply their endorsement of this site. Corrections.