A Department of War decision has sparked controversy among members of The Church of Jesus Christ of Latter-day Saints (LDS), commonly known as Mormonism.
As part of a broader effort to streamline religious affiliation codes used by military chaplains, the Pentagon reduced its recognized faith categories from more than 200 designations to just 31. In the process, Mormonism was no longer grouped under Christianity but was listed separately alongside other distinct religious traditions.
The change has generated strong reactions. Some LDS members have expressed frustration, arguing that Mormons consider themselves Christians because they believe in Jesus Christ and use Christian terminology. Others have viewed the move as an unnecessary exclusion from the broader Christian community.
Hegseth announced the initiative in a video message on Dec. 16, 2025, that promised to “make the Chaplain Corps great again” and condemned New Age notions in the “Army Spiritual Fitness Guide” that he ordered eliminated.
For Bible-believing Christians, however, the question is not whether Mormonism uses Christian language. The question is whether Mormon doctrine teaches the same Gospel, the same Christ, and the same God revealed in Scripture.
That distinction matters.
Why the Classification Changed
According to Pentagon officials, the reduction in faith categories was intended to make it easier for military chaplains to understand the religious makeup of their units and provide appropriate support. The change was described as administrative rather than a judgment on the legitimacy of any faith tradition. Service members can still identify as members of the LDS Church, but Mormonism now appears as its own category rather than being grouped within Christianity.
Defense Department official Sean Parnell defended the change in a post on X, arguing it was designed to aid chaplains as they gathered information on how to serve members of common religions within their units.
The decision affected approximately 180 faith and belief categories, including numerous minority religious groups and belief systems. Mormonism remained recognized but distinct.
While some view the change primarily through a political lens, Christians should evaluate it through a theological lens.
Does Using Christian Language Make Something Christian?
One of Satan’s oldest strategies is counterfeiting truth.
False religions rarely present themselves as obvious deceptions. Instead, they often adopt biblical language while redefining biblical terms.
The Apostle Paul warned believers:
“For if one comes and preaches another Jesus whom we have not preached, or you receive a different spirit which you have not received, or a different gospel which you have not accepted, you tolerate this beautifully.”
— 2 Corinthians 11:4 (NASB)
Notice Paul’s concern.
Not merely another religion.
Another Jesus.
Another gospel.
Another message of salvation.
The fact that a group uses the name “Jesus” does not automatically make its teachings Christian. The question is whether the Jesus being proclaimed is the Jesus revealed in Scripture.
Key Differences Between Christianity and Mormonism
From a historic Protestant and Reformed perspective, Mormonism differs from biblical Christianity on several foundational doctrines.
The Nature of God
Historic Christianity teaches that there is one eternal God who has always existed as Father, Son, and Holy Spirit.
Scripture declares:
“Before Me there was no God formed, and there will be none after Me.”
— Isaiah 43:10 (NASB)
Mormon theology historically teaches that God the Father was once a man who progressed to godhood and that human beings may likewise become gods.
This concept is fundamentally different from the biblical doctrine of God.
The Person of Jesus Christ
Christianity teaches that Jesus Christ is the eternal Son of God, fully God and fully man.
John writes:
“In the beginning was the Word, and the Word was with God, and the Word was God.”
— John 1:1 (NASB)
Mormon theology teaches that Jesus is a spirit child of Heavenly Father and is the spirit brother of Lucifer.
That is not the Christ taught by Scripture or confessed by the historic church.
The Authority of Scripture
Biblical Christianity recognizes the Bible as the inspired, sufficient, and authoritative Word of God.
Mormonism adds additional sources of authority, including the Book of Mormon, Doctrine and Covenants, and Pearl of Great Price.
The Reformers stood firmly on Sola Scriptura—Scripture alone.
When additional revelations are placed alongside Scripture, biblical authority becomes compromised.
The Gospel of Salvation
The heart of Christianity is the Gospel.
The Bible teaches that sinners are justified by grace alone through faith alone in Christ alone.
“For by grace you have been saved through faith; and this is not of yourselves, it is the gift of God; not a result of works, so that no one may boast.”
— Ephesians 2:8-9 (NASB)
While LDS teachings include references to grace, they also incorporate temple ordinances, church requirements, and additional works as necessary elements in achieving exaltation.
The Reformation drew a clear line on this issue.
Salvation is not Christ plus works.
It is Christ alone.
Why Truth Matters
Some Christians may wonder why these distinctions matter.
After all, shouldn’t believers focus on what they have in common?
Scripture repeatedly calls Christians to love others while also guarding the truth.
Love without truth becomes compromise.
Truth without love becomes harshness.
Christians are called to hold both together.
Recognizing doctrinal differences is not an act of hatred. It is an act of honesty.
The Apostle Jude instructed believers:
“Beloved, while I was making every effort to write you about our common salvation, I felt the necessity to write to you appealing that you contend earnestly for the faith which was once for all handed down to the saints.”
— Jude 3 (NASB)
The faith delivered by Christ and His apostles is not infinitely flexible. It has content.
Doctrine matters because eternity matters.
A Christian Response
How should believers respond?
Not with mockery.
Not with hostility.
Not with arrogance.
Christians should treat Mormon neighbors, coworkers, family members, and military service members with dignity and respect.
At the same time, Christians must not blur important theological distinctions.
We should lovingly proclaim the biblical Gospel.
We should point people to the sufficiency of Scripture.
We should emphasize salvation by grace alone through faith alone in Christ alone.
And we should remember that the goal is not winning arguments.
The goal is seeing people come to saving faith in the true Jesus Christ revealed in God’s Word.
The Pentagon’s administrative decision will continue to generate debate. But for Christians, the larger issue remains unchanged.
The question is not what category a government agency uses.
The question is this:
Who is Jesus?
And are we trusting in the Christ of Scripture or a different gospel altogether?