How Many Books Are in the Bible? A Complete Guide

Have you ever asked yourself how many books are in the Bible? Are there books that are lesser known? How are these books organized? Is the Bible only divided into the Old Testament and the New Testament?

These questions have interested readers across cultures and faiths for centuries. Understanding the structure of the Bible can feel overwhelming, but each book holds an important role in biblical history and Christian belief.

The Bible has inspired millions of people over generations. Its stories offer timeless lessons and guide Christians in their faith. When you pick up a Bible, it helps to know: what are the books of the Bible, and how many are there?


How Many Books Are in the Bible?

The Bible contains 66 books. It is divided into two main sections: the Old Testament and the New Testament.

  • Old Testament: 39 books
  • New Testament: 27 books

Each section has its own focus and covers different periods in biblical history.

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The 39 Books of the Old Testament

The Old Testament tells the story of God’s relationship with humanity from the beginning of time up to about 400 years before Jesus was born.

It teaches us about the creation of the world, the journey to the Promised Land, the giving of the Ten Commandments, the Babylonian exile, the songs of David, and the wisdom of Solomon.

List of the Old Testament Books

Genesis, Exodus, Leviticus, Numbers, Deuteronomy, Joshua, Judges, Ruth, 1 Samuel, 2 Samuel, 1 Kings, 2 Kings, 1 Chronicles, 2 Chronicles, Ezra, Nehemiah, Esther, Job, Psalms, Proverbs, Ecclesiastes, Song of Solomon, Isaiah, Jeremiah, Lamentations, Ezekiel, Daniel, Hosea, Joel, Amos, Obadiah, Jonah, Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, Malachi.


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The Five Categories of the Old Testament

The Old Testament is grouped into five categories:

1. The Pentateuch (Torah)

These are the first five books, also known as the Law:

  • Genesis
  • Exodus
  • Leviticus
  • Numbers
  • Deuteronomy

2. Historical Books

These books record the history of Israel:

  • Joshua
  • Judges
  • Ruth
  • 1 Samuel
  • 2 Samuel
  • 1 Kings
  • 2 Kings
  • 1 Chronicles
  • 2 Chronicles
  • Ezra
  • Nehemiah
  • Esther

3. Poetry and Wisdom Books

These books offer insights on life, worship, and human experience:

  • Job
  • Psalms
  • Proverbs
  • Ecclesiastes
  • Song of Solomon

4. Major Prophets

These books contain longer prophecies and messages:

  • Isaiah
  • Jeremiah
  • Lamentations
  • Ezekiel
  • Daniel

5. Minor Prophets

These shorter prophetic books still carry deep meaning:

  • Hosea
  • Joel
  • Amos
  • Obadiah
  • Jonah
  • Micah
  • Nahum
  • Habakkuk
  • Zephaniah
  • Haggai
  • Zechariah
  • Malachi

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Who Wrote the Old Testament?

The authors of the Old Testament include Moses, David, Solomon, and various prophets like Amos, Hosea, and Micah. Each writer shared personal experiences and divine messages, shaping the foundation of Christian theology.


The 27 Books of the New Testament

The New Testament introduces Jesus Christ and the formation of the early church. It reveals Jesus as “the way, the truth, and the life” (John 14:6).

It shows how both Jews and Gentiles became the children of God through faith in Jesus. The New Testament also records the spread of the gospel during the time of the Roman Empire.

List of the New Testament Books

Matthew, Mark, Luke, John, Acts, Romans, 1 Corinthians, 2 Corinthians, Galatians, Ephesians, Philippians, Colossians, 1 Thessalonians, 2 Thessalonians, 1 Timothy, 2 Timothy, Titus, Philemon, Hebrews, James, 1 Peter, 2 Peter, 1 John, 2 John, 3 John, Jude, Revelation.

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The Four Categories of the New Testament

1. The Gospels

The Gospels present the life, teachings, death, and resurrection of Jesus:

  • Matthew
  • Mark
  • Luke
  • John

Each gospel provides a unique view of Jesus’ ministry and mission.

2. The Acts of the Apostles

Acts, written by Luke, describes the growth of the early church after Jesus’ ascension.

3. The Epistles

There are 21 letters (epistles) that guide believers in faith and practice:

  • Pauline Epistles (14 letters by Paul): Romans to Philemon
  • General Epistles: Hebrews to Jude

4. The Book of Revelation

Revelation, written by John, contains prophetic visions about Jesus’ return and the end of the world.


Key Differences Between the Protestant, Catholic, and Hebrew Bibles

The Protestant Bible

The Protestant Bible includes 66 books. It became the standard for most Christian denominations after the Reformation led by Martin Luther in the 1500s.

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The Roman Catholic Bible

The Catholic Bible includes 73 books. It adds seven deuterocanonical books:

  • Tobit
  • Judith
  • 1 Maccabees
  • 2 Maccabees
  • Wisdom of Solomon
  • Sirach (Ecclesiasticus)
  • Baruch

These books are accepted by the Catholic Church but not by Protestants.

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The Hebrew Bible (Tanakh)

The Hebrew Bible has 24 books, organized into:

  • Torah (Law)
  • Nevi’im (Prophets)
  • Ketuvim (Writings)

The content overlaps with the Christian Old Testament, though arranged differently.


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Other Ancient Bibles

The Syriac Bible, one of the oldest translations, was written in Aramaic. It includes Old Testament and Christian scriptures, along with some non-canonical texts.


How Was the Bible Put Together?

After Jesus’ apostles died, early Christians used various scrolls and writings. Between 320 A.D. and 400 A.D., church councils gathered to decide which books were inspired by God.

The Council of Nicaea (325 A.D.), led by Emperor Constantine, helped organize key doctrines. By 395 A.D., the Old Testament was set. The New Testament canon was confirmed soon after.

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Why Does the Bible Matter Today?

The Bible is read by over 2 billion Christians worldwide. It shapes beliefs, ethics, and values across cultures. The Bible remains a powerful guide for spiritual growth, moral decisions, and understanding God’s plan.

According to a 2022 survey by the American Bible Society, 39% of U.S. adults read the Bible at least three times per year, showing its ongoing influence.


Frequently Asked Questions

1. How many books are in the Bible?

The Bible contains 66 books: 39 in the Old Testament and 27 in the New Testament.

2. What is the difference between the Catholic and Protestant Bible?

The Catholic Bible includes seven extra books in the Old Testament, known as the deuterocanonical books.

3. Who decided which books belonged in the Bible?

Early church councils between 320 A.D. and 400 A.D. determined the canon of Scripture based on apostolic authorship and consistency with Christian teaching.

4. What is the shortest book in the Bible?

3 John is the shortest book in the Bible, with only one chapter and 14 verses.

5. Why are there different versions of the Bible?

Different Bible versions result from translation choices, manuscript discoveries, and theological perspectives. Examples include the King James Version (KJV), New International Version (NIV), and English Standard Version (ESV).


What Can You Do Next?

If you want to deepen your understanding of the Bible, start by reading one book at a time. Many recommend beginning with the Gospel of John to learn about Jesus.

You can also join a Bible study group, use a Bible reading app, or read a study Bible with helpful notes.

Pick up your Bible, explore its books, and let its message shape your life.

Whether you are new to the Bible or have read it for years, every book holds wisdom worth discovering.


“Your word is a lamp to my feet and a light to my path.” (Psalm 119:105)

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