Christianity vs. Mormonism

What Christians Should Know About Mormonism

Mormonism — officially the Church of Jesus Christ of Latter-day Saints — is one of the fastest-growing religious movements in the world, and one of the most misunderstood. It presents itself as a restoration of original Christianity, uses familiar Christian language, and centers its life on Jesus Christ. But the theology underneath that language is something quite different from historic Christianity — and every believer who has LDS friends, family members, or neighbors should understand why.

The LDS Church was founded in 1830 by Joseph Smith, who claimed to have received a series of divine revelations beginning in 1820. Smith taught that the original church established by Jesus had fallen into apostasy after the death of the apostles, and that all existing Christian denominations were therefore corrupt. He claimed to have restored the true church, along with new scripture — the Book of Mormon — and new doctrines that departed significantly from what Christians had believed for nearly two thousand years.

Among those departures: LDS theology teaches that God the Father has a physical body of flesh and bones, that God was once a mortal man who progressed to become God, and that faithful Latter-day Saints can themselves become gods in the afterlife. Jesus, in LDS teaching, is the firstborn spirit child of Heavenly Father — a created being, though exalted. These are not minor variations on Christian themes. They represent a fundamentally different understanding of who God is.

Historic Christianity — affirmed across Catholic, Orthodox, and Protestant traditions for nearly two thousand years — teaches that God is eternal, uncreated, and unchanging. He has always been God and there is no God before him or after him (Isaiah 43:10). The Trinity is not three separate gods but one God in three persons. Jesus is not a created being but the eternal Son, through whom all things were made (John 1:1–3). These are not negotiable footnotes — they are the foundation of the gospel.

None of this means that Latter-day Saints are bad people or that conversations with them should be adversarial. Most LDS people are sincere, kind, and genuinely devoted to what they believe. The goal of understanding Mormonism is not to win arguments — it is to be a faithful witness to the Jesus of Scripture, and to have honest, respectful conversations with people you care about. That kind of conversation requires knowing what you believe and why, and understanding what your LDS friend actually believes — not a caricature of it.

A Side-by-Side Look