Book of Mormon vs. Bible: What Is the Difference?

Are the Book of Mormon and the Bible rivals, replacements for each other, or something else? That is the question most people are really asking when they search for a comparison, and distorted answers are easy to find.

Members of The Church of Jesus Christ of Latter-day Saints would answer simply: neither book replaces the other. Latter-day Saints believe both are scripture, read them side by side, and describe the Book of Mormon on its own title page as "Another Testament of Jesus Christ." This article explains, in the Church's own terms, what each book covers, where each came from, and how they are used together.

The short answer

The Bible is an ancient collection of writings from the Near East and the Mediterranean world, recording God's dealings with the house of Israel and the ministry of Jesus Christ and his apostles. The Book of Mormon is a record that Latter-day Saints believe describes God's dealings with peoples in the ancient Americas, including a visit by the risen Jesus Christ to people there after his resurrection.

Both books testify of Jesus Christ, in Latter-day Saint belief. They differ in the peoples and places they cover, and in how they reached modern readers.

How Latter-day Saints state their belief

The eighth Article of Faith, one of thirteen short statements of belief written by Joseph Smith, states the position directly:

"We believe the Bible to be the word of God as far as it is translated correctly; we also believe the Book of Mormon to be the word of God."

Two things in that sentence often get missed. First, the Bible is affirmed without hesitation. Second, there is a qualification about translation — "as far as it is translated correctly" — which reflects a belief that the biblical text passed through many hands, languages, and copies over centuries. No similar qualification is attached to the Book of Mormon, because Latter-day Saints believe it was translated once, by Joseph Smith, through what they describe as the gift and power of God. Other Christians phrase their confidence in the Bible differently; the point here is accuracy about what Latter-day Saints themselves teach: the Bible is honored and studied, and the Book of Mormon stands alongside it, not above it.

What the Bible covers

The Bible used by Latter-day Saints is the King James Version in English-speaking congregations. Its Old Testament follows the history of ancient Israel: creation, the patriarchs, the Exodus, the law given through Moses, the kingdoms of Israel and Judah, the prophets, and poetry and wisdom writing. Its New Testament records the birth, ministry, death, and resurrection of Jesus Christ in Galilee and Judea, followed by his apostles as the early Church spread around the Mediterranean. Geographically, it is a book of the ancient Near East and the Greco-Roman world, composed over many centuries in Hebrew, Aramaic, and Greek.

What the Book of Mormon covers

The Book of Mormon presents itself as an abridged record of peoples in the ancient Americas. Its narrative begins around 600 BC with a family leaving Jerusalem and traveling, in the account, across the ocean to a promised land in the Americas. It follows their descendants over roughly a thousand years — their faith, divisions, wars, and prophets.

Its best-known section is 3 Nephi, which describes a visit by the resurrected Jesus Christ to people in the Americas. In that account, Christ introduces himself with words that echo the prophets his listeners already revered:

Behold, I am Jesus Christ, whom the prophets testified shall come into the world.

3 Nephi 11:10 (Book of Mormon)

In the chapters that follow, he teaches, blesses children, and organizes disciples, in scenes Latter-day Saints read alongside the Gospels. The book closes with writings attributed to Mormon, the prophet-historian who compiled the record, and his son Moroni. Latter-day Saints believe Joseph Smith received the ancient plates, translated them, and published the Book of Mormon in 1830 — an account of its origin stated here as the Church teaches it.

How the two books are used together

In Latter-day Saint homes and congregations, the two books are not shelved in separate worlds. Sunday study rotates through the Old Testament, the New Testament, the Book of Mormon, and other Latter-day Saint scripture in a multi-year cycle, and verses from one book are routinely cross-referenced to verses in the other.

The idea of the two records belonging together is often connected by Latter-day Saints to a passage in Ezekiel, in which the prophet is told to take two sticks and join them:

Moreover, thou son of man, take thee one stick, and write upon it, For Judah, and for the children of Israel his companions: then take another stick, and write upon it, For Joseph, the stick of Ephraim, and for all the house of Israel his companions: And join them one to another into one stick; and they shall become one in thine hand.

Ezekiel 37:16-17 (KJV)

Latter-day Saints read this passage — this is the reading Saints use, attributed here as their interpretation — as an image of the Bible, the stick of Judah, and the Book of Mormon, the stick of Joseph, becoming one in the reader's hand. Other readers and traditions interpret Ezekiel 37 differently, most often in terms of the reunification of Israel, and those readings exist alongside the Latter-day Saint one.

Two translation stories, and a shared sound

The difference in translation history also explains something many first-time readers notice: the Book of Mormon sounds like the King James Bible. Its language uses "thee" and "thou," verb forms such as "hath," and phrases such as "and it came to pass."

That is not a coincidence of subject matter. Joseph Smith's translation, published in 1830, was rendered in the biblical English of the King James Version, the familiar scriptural voice of his time and place. The Bible reached English readers through translation from Hebrew and Greek by committees of scholars; the Book of Mormon, in Latter-day Saint belief, reached them through a single translator working from an ancient record. The two books share a King James cadence, even though their histories are very different.

If you want to compare passages directly, Faith Map carries both texts with reading free — you can Read both in Faith Map and move between the Bible and the Book of Mormon in the Latter-day Saint track.

A respectful summary

The Bible: ancient Israel and the early Christian Church, Near East and Mediterranean, many authors over centuries, translated from Hebrew, Aramaic, and Greek. The Book of Mormon: peoples its text places in the ancient Americas, records kept and abridged by prophets in its narrative, published in 1830 in King James-style English. Latter-day Saints believe both together give a fuller witness of Jesus Christ — hence "another testament," not a competing one — and they use the two books the same way: open together, studied together, one in the hand.