It was a Tuesday afternoon (the most dangerous time of the week for unexpected theology) when my doorbell rang. I opened the door to find two impeccably dressed young men, bicycles parked with military precision at the end of my driveway, smiles dialed in somewhere between earnest and unshakably confident. 

Before either of them could speak, my youngest child slipped past my leg, looked at their name tags, and loudly asked, “Daddy, are these the Jesus guys or the other Jesus guys?” I froze. They froze. One of them cleared his throat and said, “Well… we believe in Jesus Christ.” I nodded slowly, realizing in that moment that this conversation was going to require more than coffee, more than proof texts, and probably more than the five minutes I had before dinner. 

What followed next was a polite, sincere, and friendly discussion and debate about the differences between true Orthodox Christianity and heretical Mormonism, and it reminded me just how easily shared language can mask profoundly different beliefs. That doorstep encounter captures the challenge Baptists face when engaging with Mormon missionaries: the conversation feels familiar, until you realize you’re not standing on the same ground at all.

Engaging with the teachings of the Mormon Church (who recently dropped the Latter Day Saints for “The Church of Jesus Christ”), presents a unique challenge for evangelicals. On the surface, there is shared vocabulary: Jesus, Scripture, salvation, church, etc.

But beneath that shared language lies a fundamentally different worldview, belief system, authority structure, and gospel altogether.

Faithful evangelistic engagement with Mormons requires more than apologetic sound bites; it demands theological clarity, historical awareness, and Christlike patience, remembering how we all arrived at the truth of the Gospel—by the power of the Holy Spirit, who brings us from death to life.

Here are four things I’ve learned in my experience both witnessing to Mormons in my neighborhood and from being blessed by a Mormon convert to Christianity at my local church. I pray that they would help guide you in any evangelistic opportunties you have with Mormons in your own life and ministry.

1) Begin with clear categories, not assumptions

One of the most common errors Christians make is assuming Mormonism is simply another Christian denomination with minor doctrinal differences. It is not.

Mormonism represents a separate religious system—one that redefines God, Scripture, revelation, and salvation. Baptists must resist the temptation to argue as if they are debating secondary doctrines. The differences are foundational.

Helpful starting categories include:

• Authority: Scripture alone vs. Scripture plus ongoing revelation
• God: Eternal, uncreated, immutable vs. exalted man progressing to godhood
• Christ: Eternal Son vs. a created being and spirit brother of Lucifer
• Salvation: Justification by grace alone vs. exaltation through ordinances and obedience

Until these categories are clearly understood, conversations will remain confused and circular.

Mormon theology does not rest on the Bible as the final authority. While Mormons affirm the Bible “as far as it is translated correctly,” that qualifier effectively subordinates Scripture to later revelation.

Authoritative Mormon texts include: The Bible (qualified and edited by Joseph Smith), The Book of Mormon, the Doctrine and Covenants, and the Pearl of Great Price.

Additionally, living prophets—beginning with Joseph Smith—are viewed as God’s mouthpiece on earth today. Rather than a final, solidified canon or authority, their revelations are constant, ever-changing, and always adjusted.

Appealing to isolated Bible verses without addressing authority will rarely be persuasive. The deeper question is not what does this verse say? BUT RATHER, who has the right to say what Scripture means?

2) Press firmly but compassionately on the Doctrine of God

At the heart of the divide is the Doctrine of God. Historic Christianity confesses one eternal, self-existent, uncreated God (Isaiah 43:10; Psalm 90:2). Mormonism teaches that God the Father was once a man who progressed to godhood and that humans may likewise become gods. This is not a peripheral disagreement; it is a different deity altogether. Rather than beginning with abstract philosophy, Baptists can ask simple, biblical questions, such as: “Was there ever a time when God was not God? Is God dependent on anything outside Himself? Can God change in His being?”

These questions expose the incompatibility between Mormon theology and the biblical doctrine of God without directly confronting it.

As for Gospel clarification, many Mormons will affirm that salvation is “by grace,” but the definition of grace is radically different. Grace is also accompanied by a list of things “we can do to the best of our ability.” Ultimately, grace-based vs. works-based. 

In Mormon theology, grace enables obedience; it does not accomplish redemption. In the Mormon Church, salvation is ultimately tied to:

• Temple ordinances
• Moral progression
• Baptism by immersion
• Faithfulness to the LDS church 
• Endurance to the end

By contrast, Baptists specifically hold that justification is a finished, forensic declaration grounded entirely in the imputed righteousness of Christ (Romans 3–5).

A few helpful contrast questions include: “When were your sins fully paid for? Is your standing before God secure now, or dependent on future faithfulness? What did Christ’s atonement actually accomplish?”

These questions invite reflection rather than debate, show compassion rather than kowtowing, and seek to aim this pursuit at the right authority on the matter rather than spending ample time trying to win an argument based on your emotional experiences with Jesus, something every one of every false religion shares with the Christian. This is why we must strive to know WHY we believe WHAT we believe based on the WORD of the Lord.

3) Remember, how you interact matters

Mormons are often exceptionally polite, disciplined, and family-oriented. Many have experienced caricature or hostility from Christians. Reformed Baptists must resist sarcasm or cultural condescension. However, kindness must not replace clarity. Speaking the truth in love (Ephesians 4:15) means refusing both aggression and ambiguity. The goal is not to “win” an argument but to faithfully present the biblical Christ and gospel.

Keep in mind that you probably can’t dismantle an entire worldview in one conversation. You are sowing seeds, exposing inconsistencies, and pointing to Christ. Ultimately, God will do the work! 

4) Trust that God will find His own—even among the Mormons

I was reminded of this recently, before a Wednesday night class at my church on Counterfeit Kingdoms. As I was clipping on my microphone, a young husband and father who had been attending our church with his wife and two children for several months pulled me aside and asked whether I was aware that they had recently left the Mormon Church. He wanted me to know he planned to attend the class and, if needed, he was more than willing to contribute or offer further explanation.

I was taken aback for a couple of reasons. First, I just happened to be opening the class with Mormonism and had no idea about his background. The timing was uncanny. Second, I was immediately convinced that God would use this—and He did.

Within the first twenty minutes of the class, it became clear that this young man had a significant history with the church, particularly a deep understanding of its kingdom theology. Somewhat improvisationally, we began to co-teach. I had studied for weeks; he had lived it.

What stood out most to everyone in the room wasn’t merely his knowledge of the LDS church and its beliefs, though that was substantial; it was the humility of his testimony. Several people eventually asked him, “How did you know it was time to leave?”

His response was simple and arresting: “I didn’t. The one true God found me, pursued me, and revealed the truth to me. Once I knew the truth, I couldn’t stay with the lies.”

That was it. Audible reactions. Fist bumps. The kind of holy weight you can feel settle into a room. It was encouraging.

We ended the evening praying for his parents and his wife’s parents, who are still practicing Mormons. Our church gathered around them, embraced them, and the love of God filled the room. You couldn’t plan a moment like that. One of those rare, grace-filled gifts where you simply get to witness what God is doing.

Why bring this up at the end of an “engaging the Mormons” article? Because we must be reminded of both our duties and our limitations when we pursue Christ and His Kingdom. Duties? Be faithful. Know what we believe and present it with compassion and clarity. Be as familiarized with the Word of God as we can be! Limitations? Only the Spirit can save souls. Only the Spirit can open blind eyes. We do not have that power. But we abide in the One who does.

Ultimately, no apologetic strategy converts the heart. The same Spirit who regenerates hardened sinners in any context must also open Mormon hearts.

Conclusion

In summary, I believe that when it comes to effectively witnessing to Mormons, evangelicals should:

• Pray regularly for Mormon friends and neighbors
• Invite them into an ordinary Christian community
• Open the Bible together, especially the Gospels and Romans
• Trust that God uses His Word, preached and read, to save His people

Confidence in God’s sovereignty produces patience, not passivity.

Engaging with Mormons requires theological seriousness, historical awareness, and pastoral wisdom. Baptists are uniquely positioned to offer such engagement because of their commitment to Scripture alone, grace alone, and Christ alone.

The task is not merely to refute Mormonism, but to hold out firmly and unapologetically the true Christ, the eternal Son who finished the work of redemption and freely justifies sinners who trust in Him.

Faithful engagement is slow, prayerful, and hopeful. Salvation belongs to the Lord. Onward, Christian soldiers!