Although Mormons profess to be Christians and say they believe the Word of God, there are many of their beliefs that contradict Christianity. In fact, Mormonism can be referred to as a cult, which can be defined as “a religious group that denies one or more of the fundamentals of biblical truth.” Mormons say they are Christians, but because they reject foundational truths from God’s Word, they are not.
Joseph Smith, who referred to himself as “The Prophet,” founded the Church of Jesus Christ of Latter-day Saints in the mid-1800s. He claimed to have seen a vision of God the Father and God the Son, in which they denounced modern Christianity and appointed Smith to reveal and restore “true” Christianity (Articles of Faith, p. 182–185). Three years later, Smith alleged that the angel Moroni told him about some golden plates on which the Book of Mormon was written. In spite of Smith’s questionable background and proclivity toward bending the truth (see The Origin, Rise, and Progress of Mormonism, New York, 1861; and Mormonism Unveiled, Painesville, Ohio, 1834), many believed Smith, and a new “religion” was born. Today, the members of the Mormon Church number in the millions.
The Book of Mormon is purported to be a new revelation, one that Mormons say is part of the new covenant to Israel and “another witness” to the truth of the Bible (History of the Church 4:461, 8th Article of Faith). Aside from the many theological conflicts with the Bible and historical and archeological fact, the writing of the Book of Mormon was shrouded in mystery and false claims. For example, Joseph Smith and his associates asserted that one Professor Charles Anthon of Columbia University verified the Egyptian characters on the golden plates. However, this same professor wrote a rebuttal letter soon after, saying that he never did any such thing and had, in fact, found the characters to be a hoax. In addition, many verses in the Mormon scriptures have been changed over the years, as the church leaders attempt to cover up something embarrassing in their past and to defend themselves against criticism (see http://mit.irr.org/changes-latter-day-scripture). These facts alone are enough to cast much doubt on the veracity of the Book of Mormon.
One of the many areas in which Mormons fall short of saving faith is their belief that God is merely an exalted man who earned his position by good works (Mormon Doctrine, p. 321; Teachings of the Prophet Joseph Smith, p. 345). This directly contradicts the Bible, which states that God has existed in His position as God of the universe from eternity past (Revelation 1:8; 1 Timothy 1:17; 6:15–16; Psalm 102:24–27). God was never a man (Numbers 23:19; 1 Samuel 15:29; Hosea 11:9) and is the holy and powerful Creator of all things (Genesis 1; Psalm 24:1; Isaiah 37:16). Mormons also believe that they themselves can attain the status of gods in the afterlife through their works here on earth (Teachings of the Prophet Joseph Smith, p. 345–354). However, no man can ever become like God (1 Samuel 2:2; Isaiah 43:10–11; 44:6; 45:21–22), despite what the serpent told Eve in the garden (Genesis 3:5).
Mormons also believe that Jesus was a god, but not God Himself (Mormon Doctrine, p. 547; Articles of Faith, p. 35; Teachings of the Prophet Joseph Smith, p. 372). It is essential to Christian faith that Jesus is one with God and that He is God’s only begotten Son who became flesh (John 1:1, 14; John 3:16). Only Jesus’ oneness with God would have allowed Him to live a sinless, blameless life (Hebrews 7:26). And only Jesus Christ was able to pay the price for our sins by His death on the cross (Romans 4:25; Acts 4:12).
Those who follow the Mormon faith also believe that they can attain heaven through works (Doctrine and Covenants 58:42–43; 2 Nephi 9:23–24; Alma 34:30–35; Articles of Faith, p.92). While they claim faith in Christ, they also rely on following the commandments of the Mormon Church (Doctrines of Salvation, vol. 1, p 188; Mormon Doctrine, p. 670) and practicing good works (2 Nephi 25:23; Alma 11:37) in order to achieve salvation. The Bible is very clear on this point, stating that good works can never earn the way to heaven (Romans 11:6; Ephesians 2:8–9; Titus 3:5) and that faith in Jesus Christ alone is the only way to salvation (John 10:9; 11:25; 14:6; Acts 4:12). Salvation by grace is incompatible with salvation by human works (Romans 11:6).
Sadly, many in the Mormon Church are unaware of the religion’s shady past, amended scriptures, and even the full doctrine of their church. Many Mormons who have discovered these things have left the church and come to a true saving faith in Jesus Christ. As Christians, we must treat Mormons with love and understand that they are among those deceived by Satan himself (1 Peter 5:8). Satan’s goal is to distort the truth, produce false assurance of salvation, and extend a deceptive hope of godhood (2 Corinthians 4:4).
Other informative links regarding Mormonism from gotquestions.org and coldcasechristianity.com are:
Do Mormons Believe in the Trinity?
How Should Christians View the Book of Mormon?
Is Mormonism Properly Defined as a Cult?
Worthy is the Lamb! Blessings!