While Mormonism and traditional Christianity share a foundation in faith and scripture, the theological distinctions are significant and shape entirely different religious experiences. Followers of The Church of Jesus Christ of Latter-day Saints (LDS) believe in the same core figures—God the Father, Jesus Christ, and the Holy Spirit—but they interpret the nature of these beings and the path to salvation in ways that diverge from historic Nicene Christianity. Understanding these differences requires looking at concepts of God, man, scripture, and grace, which form the pillars of Mormon distinctives.
The Nature of God and the Godhead
The most fundamental difference lies in the Mormon understanding of the Godhead. Traditional Christian theology, rooted in centuries of creeds and councils, defines God as an eternal, uncreated Spirit existing as three co-equal, co-eternal, and consubstantial persons: Father, Son, and Holy Spirit. In contrast, Latter-day Saint theology teaches that God the Father, Jesus Christ, and the Holy Ghost are three distinct beings who form a united "Godhead" based on purpose and glory, not substance. Mormons believe that God the Father was once a mortal man who achieved exaltation, and that Jesus Christ is His literal spirit-begotten Son, a being who progressed through obedience to become divine.
Jesus Christ: The Only Begotten Son
This difference in the nature of the Father directly impacts the understanding of Jesus. While Christians affirm the doctrine of the Trinity—that Jesus is fully God and fully man from eternity—Mormons view Christ as the "Only Begotten Son" in a unique familial sense. He is the firstborn spirit son of God the Father, created in the beginning to be the Savior of the world. Consequently, while Mormons revere Jesus as the literal Redeemer and Messiah, they do not attribute the titles of "Alpha and Omega" or "I AM" to Him in the same eternal sense, seeing those attributes as belonging to the Father.
Scripture and Continuing Revelation
Another major divergence is the source and scope of scripture. Mainstream Christianity holds the Bible as the sole, inerrant inspired word of God, closed at the end of the apostolic age. Mormonism accepts the Bible as the word of God as far as it is translated correctly, but it positions the Book of Mormon as another testament of Jesus Christ, equal in authority. Furthermore, Mormons believe in a living prophet who receives continuous revelation to guide the church, meaning doctrine can evolve with modern insights. This concept of an open canon contrasts sharply with the closed canon affirmed by most Christian denominations.
The Plan of Salvation and Exaltation
The ultimate purpose of human existence also differs starkly. The Christian gospel often emphasizes salvation from sin through grace and faith in Christ’s atonement, with the promise of eternal life in heaven. The Mormon plan of salvation, while acknowledging grace, places a heavy emphasis on human effort and progression. Mormons believe in the potential for "exaltation"—becoming like God and obtaining one's own planet and spirit offspring in the afterlife. This involves passing through multiple kingdoms of glory, with the highest being achievable only by those who keep all the ordinances and covenants of the LDS faith.
Ordinances, Temples, and the Afterlife
The mechanics of receiving salvation and the structure of the afterlife are detailed differently. Mormonism requires specific ordinances, such as baptism by immersion and the sacrament, to be performed by their authorized priesthood. These ordinances are often performed vicariously for deceased ancestors in LDS temples, a practice known as proxy baptism. The afterlife is divided into three degrees of glory: the Celestial Kingdom (highest), the Terrestrial Kingdom, and the Telestial Kingdom, with the outer darkness reserved for the Sons of Perdition. This nuanced view of the afterlife differs from the simpler binary of heaven and hell found in many Christian traditions.
