Article 2.3: The Canon of Scripture: Who Assembled the Bible?

Category: The Historical Line / Church History

Reading Time: 8-10 mins

Quick Summary: "The Bible did not drop from heaven fully bound; the 73-book canon of Sacred Scripture was formally discerned, collected, and finalized by the authority of the Catholic Church in the late 4th century, demonstrating that the authority of the Church and the authority of Scripture are inseparable."

⚡ 60-Second Overview

The Need for Discernment: In the early centuries, dozens of pseudepigraphal gospels and letters circulated alongside true apostolic writings. The early Christians required an authoritative guide to separate inspired text from heresy.

The 73-Book Canon: Regional Church Councils in the late 4th century (Hippo 393 AD, Carthage 397 AD), ratified by the Pope in Rome, established the exact list of 73 books (46 Old Testament, 27 New Testament) used by Christians for over a millennium.

The Deuterocanon: The 7 books removed from Protestant Bibles during the 16th-century Reformation (such as Tobit, Judith, and Maccabees) were part of the Septuagint Greek Old Testament used directly by Jesus, the Apostles, and the early Church.

Section 1: The Core Question

A central pillar of Protestant theology is Sola Scriptura—the belief that the Bible is the sole infallible rule of faith. Yet this raises a crucial historical question: How do we know which books belong in the Bible in the first place?

The Bible itself nowhere contains an inspired table of contents. There is no verse in Scripture that lists the 27 books of the New Testament. History shows that the Bible is an infallible library assembled by an authoritative Church. Without trusting the historical authority of the Catholic Church that discerned and canonized the collection, one has no objective basis for knowing that the 66 or 73 books selected are indeed the inspired Word of God.

Section 2: Historical Timeline of the Canon

1. The Apostolic Age & The Septuagint (1st Century)

During the time of Christ, there was no single closed Jewish Old Testament canon. The early Apostles and Greek-speaking Jewish communities primarily used the Septuagint (LXX)—a Greek translation of the Old Testament that included the 7 Deuterocanonical books (Wisdom, Sirach, Tobit, Judith, Baruch, 1 & 2 Maccabees, and additions to Daniel and Esther). Over 80% of Old Testament quotes in the New Testament are drawn directly from the Septuagint.

2. Confusion and Heresy (2nd–3rd Century)

As the Church grew, figures like Marcion (who rejected the entire Old Testament and edited Luke) and various Gnostic groups produced false "gospels" (e.g., Gospel of Thomas, Gospel of Judas). Local churches held varying collections: some read the Shepherd of Hermas or Letter of Barnabas as Scripture, while doubting books like Hebrews, Revelation, or 2 Peter.

3. Formal Declaration (Late 4th Century)

The exact 73-book canon was officially compiled and promulgated by regional councils under the guidance of the Church:

Council of Rome (382 AD): Under Pope Damasus I, the Church issued the decree listing the complete 73-book canon and commissioned St. Jerome to translate the Scriptures into Latin (the Vulgate).

Council of Hippo (393 AD) & Council of Carthage (397 AD): Reaffirmed the exact same 73-book list.

Pope St. Innocent I (405 AD) & Council of Florence (1442 AD): Confirmed the identical canon for the universal Church.

4. The Reformation Removal (16th Century)

In the 1520s, Martin Luther adopted a narrower 39-book Old Testament canon formulated by Jewish rabbis after the destruction of Jerusalem (the Masoretic Text). Luther placed the 7 Deuterocanonical books in an appendix, calling them "Apocrypha." These books remained in Protestant Bibles as non-canonical reading until Bible societies removed them entirely in the 19th century.

Section 3: Scriptural & Historical Evidence

1. The Church as the Guardian of Revelation (1 Timothy 3:15)

"...the household of God, which is the church of the living God, the pillar and bulwark of the truth."

Scripture confirms that the Church is given the divine mandate to guard, preserve, and declare the truth to the world.

2. Apostolic Usage of the Deuterocanon (Hebrews 11:35 & 2 Maccabees 7)

"Women received their dead by resurrection. Some were tortured, refusing to accept release, that they might rise again to a better life." (Hebrews 11:35)

The author of Hebrews directly references the martyrdom of the mother and her seven sons recorded in 2 Maccabees 7—a book found exclusively in the Deuterocanon.

Section 4: Voices of the Early Church

Section 5: Related Resources & Next Steps

Catechism of the Catholic Church: CCC 120–130 (The Canon of Scripture).

Next Deep Dive: Article 2.3b: Lost Books: The Book of Enoch, Apocrypha, and Scripture