The Church of Jesus Christ of Latter-Day Saints (LDS), commonly known as Mormonism, teaches doctrines that significantly differ from biblical Christianity. While Mormons use Christian terminology, their understanding of God, Jesus, salvation, and scripture is vastly different from what the Bible teaches. This study will provide a strong biblical foundation for witnessing to a Mormon, exposing doctrinal errors, and leading them to the true Jesus Christ of the Bible.
As always, witnessing should be done with grace and truth (Colossians 4:6), relying on prayer and the guidance of the Holy Spirit (James 1:5).
Core Beliefs of Mormonism Compared to Biblical Christianity
God
LDS Belief: God (Heavenly Father) was once a man who progressed to godhood. Mormons believe there are many gods, but they only worship one.
Biblical Truth: God is eternal, unchanging, and there is only one God (Isaiah 43:10, Malachi 3:6, Deuteronomy 6:4).
Jesus Christ
LDS Belief: Jesus is the spirit brother of Lucifer, a created being who progressed to become a god.
Biblical Truth: Jesus is fully God, co-eternal with the Father, and the Creator of all things (John 1:1-3, Colossians 1:16-17, Hebrews 1:8).
The Holy Spirit
LDS Belief: The Holy Spirit is a separate god from Heavenly Father and Jesus.
Biblical Truth: The Holy Spirit is fully God, one with the Father and Son (Acts 5:3-4, John 14:26, 2 Corinthians 3:17).
Salvation
LDS Belief: Salvation requires faith, baptism, good works, and temple rituals. The highest level of heaven (Celestial Kingdom) is reserved for those who follow LDS teachings.
Biblical Truth: Salvation is by grace alone, through faith alone, in Christ alone (Ephesians 2:8-9, Romans 10:9-10, Titus 3:5).
Scripture
LDS Belief: The Bible is true “as far as it is translated correctly,” but they also believe in the Book of Mormon, Doctrine & Covenants, and the Pearl of Great Price.
Biblical Truth: The Bible alone is the inspired, infallible Word of God (2 Timothy 3:16-17, Revelation 22:18-19).
Key Strategies for Witnessing to a Mormon
Approach with Love and Respect
Many Mormons are sincere, moral people who genuinely believe they are following Christ. The goal is not to attack their beliefs but to help them see the truth in God’s Word.
1 Peter 3:15: “But sanctify the Lord God in your hearts, and always be ready to give a defense to everyone who asks you a reason for the hope that is in you, with meekness and fear.”
2 Timothy 2:24-26: “And a servant of the Lord must not quarrel but be gentle to all, able to teach, patient, in humility correcting those who are in opposition, if God perhaps will grant them repentance.”
Establish the Authority of the Bible
Mormons are taught that the Bible has been corrupted and that the Book of Mormon restores lost truths. Start by affirming that God’s Word never changes and is completely trustworthy.
Matthew 24:35: “Heaven and earth will pass away, but My words will by no means pass away.”
Isaiah 40:8: “The grass withers, the flower fades, but the word of our God stands forever.”
2 Timothy 3:16-17: “All Scripture is given by inspiration of God…”
Ask Them: If God promised to preserve His Word, how could it be corrupted?
Refuting Mormon Beliefs with Scripture
There Is Only One God
Mormons believe in many gods and that God was once a man who became a god. The Bible repeatedly declares that there is only one true God.
Isaiah 43:10: “Before Me there was no God formed, nor shall there be after Me.”
Isaiah 44:6: “Thus says the Lord, the King of Israel, and his Redeemer, the Lord of hosts: ‘I am the First and I am the Last; Besides Me there is no God.’”
Deuteronomy 6:4: “Hear, O Israel: The Lord our God, the Lord is one!”
Ask Them: If God Himself says there is no other God, how can men become gods?
Jesus Is Not the Brother of Lucifer—He Is God
Mormons believe that Jesus and Lucifer are spirit brothers, both created by Heavenly Father. However, the Bible teaches that Jesus is the Creator of all things.
John 1:1-3: “In the beginning was the Word, and the Word was with God, and the Word was God… All things were made through Him.”
Colossians 1:16: “For by Him all things were created that are in heaven and that are on earth… All things were created through Him and for Him.”
Hebrews 1:8: “But to the Son He says: ‘Your throne, O God, is forever and ever.’”
Ask Them: If Jesus created all things, how could He be a created being?
Salvation Is by Faith Alone—Not Works
Mormons believe that good works, temple rituals, and baptism are necessary for salvation. The Bible teaches that we are saved by grace, not works.
Ephesians 2:8-9: “For by grace you have been saved through faith, and that not of yourselves; it is the gift of God, not of works, lest anyone should boast.”
Romans 10:9-10: “That if you confess with your mouth the Lord Jesus and believe in your heart that God has raised Him from the dead, you will be saved.”
Titus 3:5: “Not by works of righteousness which we have done, but according to His mercy He saved us.”
Ask Them: If salvation is by grace, why do we need works to be saved?
How to Lead a Mormon to Christ
Ask Questions – Help them think critically about their beliefs.
“If the Bible says there is only one God, how can men become gods?”
“Why does the Bible say salvation is by grace, but Mormonism requires works?”
Focus on Jesus – Lead them to the true Jesus, not the Mormon version.
Emphasize Christ’s full deity (John 1:1, Colossians 2:9).
Emphasize Christ’s finished work on the cross (John 19:30).
Challenge the Book of Mormon – Encourage them to trust the Bible alone.
Revelation 22:18-19 warns against adding to Scripture.
Galatians 1:8 condemns false gospels.
Encourage Personal Study – Ask them to read the Gospel of John without Mormon influence.
Hebrews 4:12: “For the word of God is living and powerful…”
My Final Thoughts
Witnessing to a Mormon requires patience, love, and a firm foundation in Scripture. Many Mormons sincerely believe they are following Christ, but their faith is based on man-made teachings rather than the true Word of God.
The goal is not to debate but to plant seeds of truth. Trust in the power of God’s Word (Hebrews 4:12) and the work of the Holy Spirit to open their eyes. Keep the conversation centered on Jesus, salvation, and the Bible’s authority.
