Christian Field Guide

Understanding Mormonism

A complete resource for Christians who want to understand what Latter-day Saints believe — and how to talk with them honestly, respectfully, and from a place of genuine faith.

Why this cluster exists

Mormonism is the religious tradition a Christian is most likely to encounter in everyday life — and the most likely to misunderstand. It uses Christian language, emphasizes family and community, and presents itself as a restoration of the original church. The surface similarities make the deep differences easy to miss.

These 14 articles cover the full range: foundational theology (God, Jesus, salvation, heaven, scripture), the history and origins of the LDS church, and practical guidance for real conversations — with missionaries at your door, with a neighbor, with a family member who has left the church.

The goal throughout is not to win arguments. It is to help you understand what Latter-day Saints actually believe, be honest about what you believe, and have the kind of conversation that takes both people seriously.

All 14 articles

Organized from foundational theology through practical evangelism.

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What Christians Should Know About Mormonism

The essential overview — covering God, Jesus, salvation, and the key differences between LDS teaching and historic Christianity.

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Theology

What Do Mormons Believe About God?

The God of Mormonism and the God of the Bible are not the same being. Here is what LDS theology actually teaches about the nature of God.

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Theology

What Do Mormons Believe About Jesus?

Mormons talk about Jesus constantly — but the Jesus of Mormonism is not the Jesus of the Bible.

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Theology

What Do Mormons Believe About Salvation?

LDS theology teaches that grace is necessary but not sufficient. Exaltation requires temple ordinances and lifelong faithfulness.

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Theology

What Do Mormons Believe About Heaven?

LDS theology describes three kingdoms of glory — and most Christians, in that framework, will not make it to the highest one.

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Theology

What Do Mormons Believe About the Bible?

The LDS church accepts the Bible as scripture — but with a significant qualification that changes everything.

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History

Joseph Smith: What Christians Should Know

His claims — visions, golden plates, restored authority — are the foundation of everything the LDS church teaches.

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History

The Book of Mormon vs. the Bible: Key Differences

Mormons believe the Book of Mormon is "another testament of Jesus Christ." Here is what the actual differences are.

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History

Is Mormonism a Cult? What Christians Should Know

The word "cult" is loaded and often unhelpful. Here is a more precise way to think about what Mormonism is.

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Evangelism

Can Mormons Be Saved? What the Bible Says

One of the most common questions Christians ask — and one of the most important to answer carefully.

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Evangelism

How to Pray With a Mormon Friend

Prayer is one of the most powerful things you can do with a Latter-day Saint. Here is how to do it honestly.

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Evangelism

How to Talk to Mormon Missionaries When They Knock

They are polite, prepared, and sincere. Here is how to have a real conversation when they come to your door.

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Small Groups

How to Talk About Mormonism With Your Small Group

A practical guide for small group leaders who want to cover LDS theology without derailing the discussion.

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Pastoral

What Happens When a Mormon Leaves the Church

Leaving the LDS church is rarely simple. Here is what the experience is like — and how Christians can respond well.

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Key differences at a glance

TopicHistoric ChristianityLDS Teaching
GodEternal, uncreated, incorporeal spiritAn exalted man; once mortal; has a physical body
JesusEternal Son of God; fully God and fully manFirstborn spirit child of Heavenly Father; a created being
TrinityOne God in three personsThree separate beings united in purpose
SalvationBy grace alone through faith alone in Christ aloneGrace necessary but not sufficient; exaltation requires ordinances
ScriptureBible alone as the Word of GodBible + Book of Mormon + D&C + Pearl of Great Price
HeavenEternal life in God's presenceThree kingdoms of glory; exaltation = becoming a god
AuthorityChrist and ScriptureLDS priesthood restored through Joseph Smith

Go deeper with the Field Guide

The Christian Field Guide covers Mormonism, Jehovah's Witnesses, Islam, and 17 other traditions in a single 72-page reference — organized by doctrine, anchored in Scripture, and written for everyday believers.