The Deuterocanonical Books: Why Catholics Have 7 More Books in the Bible

What Are the Deuterocanonical Books?

The word "deuterocanonical" comes from the Greek deuteros (second) and kanon (rule or standard). It means "belonging to the second canon" — not because these books are less important, but because their canonical status was confirmed at a later stage than the other Old Testament books.

The seven deuterocanonical books are:

• Tobit — a story of faith, healing, and the role of angels
• Judith — a heroic widow who saves Israel from an Assyrian general
• 1 Maccabees — a historical account of the Maccabean revolt (175–134 BC)
• 2 Maccabees — a theological reflection on the same period, including prayers for the dead
• Wisdom (Book of Wisdom) — a meditation on wisdom, immortality, and God's justice
• Sirach (Ecclesiasticus) — practical wisdom for daily life, similar to Proverbs
• Baruch — attributed to Jeremiah's secretary, includes a letter of Jeremiah

In addition, the Catholic Bible includes longer versions of Daniel (with the Prayer of Azariah, the Song of the Three Young Men, Susanna, and Bel and the Dragon) and Esther (with additional Greek passages).

Why Are They in the Catholic Bible? The Septuagint

The key to understanding this debate is the Septuagint — the Greek translation of the Hebrew Scriptures, produced in Alexandria, Egypt, between the 3rd and 1st centuries BC. The Septuagint (abbreviated LXX) was the Bible of the Greek-speaking Jewish diaspora and, crucially, the Bible used by the early Church.

The Septuagint included the seven deuterocanonical books. When the New Testament authors quoted the Old Testament — which they did hundreds of times — they almost always quoted from the Septuagint, not from the Hebrew text. This means the early Church was using a Bible that included these seven books.

The early Church Fathers — Clement of Rome, Irenaeus, Tertullian, Origen, Augustine — all cited the deuterocanonical books as Scripture. The Council of Hippo (393 AD) and the Council of Carthage (397 AD) both affirmed a canon of 73 books, including the deuterocanonicals. This was the Bible of the Western Church for over a thousand years.

The Council of Trent (1546): Formal Definition

The Catholic Church formally defined the canon of Scripture at the Council of Trent in 1546. The Council issued a decree listing all 73 books as canonical and declared that anyone who rejected any of them was anathema (formally excluded from the Church).

This was not an innovation — it was a reaffirmation of what the Church had always believed and practiced. The Council of Trent was responding directly to the Protestant Reformation, which had begun to question the canon.

Why Did Protestants Remove Them? Luther and the Reformation

Martin Luther was the key figure in removing the deuterocanonical books from the Protestant canon. Luther's primary motivation was theological: he was developing his doctrine of sola scriptura (Scripture alone) and needed to establish a clear, authoritative canon.

Luther turned to the Hebrew canon — the list of books accepted by rabbinic Judaism after the destruction of the Temple (around 90 AD at the Council of Jamnia). The rabbis had excluded the deuterocanonical books because they were written in Greek (or survived only in Greek) and were not part of the Palestinian Hebrew tradition.

There was also a doctrinal motivation: 2 Maccabees 12:43–46 explicitly supports prayers for the dead and the possibility of atonement after death — a key support for the Catholic doctrine of Purgatory. By removing 2 Maccabees from the canon, Luther eliminated one of the strongest biblical arguments for Purgatory.

Luther initially placed the deuterocanonical books in an appendix to his German Bible, calling them "Apocrypha — books which are not held equal to the Holy Scriptures, but are useful and good to read." Later Protestant traditions removed them entirely.

Brief Summary of Each Deuterocanonical Book

Why These Books Matter for Catholic Doctrine

The deuterocanonical books are not just historical curiosities — they contain teachings that are foundational to Catholic doctrine:

• Prayers for the dead (2 Maccabees 12:43–46) — the biblical basis for praying for souls in Purgatory
• The immortality of the soul (Wisdom 3:1–9) — "The souls of the righteous are in the hand of God"
• The resurrection of the body (2 Maccabees 7:9) — the martyrs die in hope of resurrection
• Almsgiving as atonement (Tobit 12:9) — "Almsgiving delivers from death and purges away every sin"
• The pre-existence of Wisdom (Sirach 24) — important background for John's Prologue

How to Respond to Protestant Objections

When a Protestant says "those books aren't in the real Bible," here are some key points to make charitably:

• The early Church used the Septuagint, which included these books. The New Testament authors quoted from it.
• The Church Fathers cited these books as Scripture for centuries before the Reformation.
• The Protestant canon was established by Luther in the 16th century — it is the innovation, not the Catholic canon.
• The Hebrew canon used by Luther was established by rabbis after the destruction of the Temple — it was not the canon used by Jesus and the apostles.
• The Council of Trent (1546) formally defined the canon, but it was reaffirming what the Church had always believed.