Cartoon showing Mormon doctrine

"Mormonism teaches that God the Father has a body of flesh and bones (D. & C. 130:22) and that Jesus is a creation. It teaches that he was begotten in heaven as one of God’s spirit children (See the book Jesus the Christ, by James Talmage, p. 8). This is in strict contrast to the biblical teaching that he is God in flesh (John 1:1, 14), eternal (John 1:1, 2, 15), uncreated, yet born on earth (Col. 1:15), and the creator all (John 1:3; Col. 1;16-17). Jesus cannot be both created and not created at the same time. Though Mormonism teaches that Jesus is god in flesh, it teaches that he is "a" god in flesh, one of three gods that comprise the office of the Trinity (Articles of Faith, by Talmage, pp. 35-40). These three gods are the Father, the Son, and the Holy Ghost. This is in direct contradiction of the biblical doctrine that there is only one God (Isaiah 44:6,8; 45:5).

Mormon theology teaches that god is only one of countless gods, that he used to be a man on another planet, that he became a god by following the laws and ordinances of that god on that world, and that he brought one of his wives to this world with whom he produces spirit children who then inhabit human bodies at birth. The first spirit child to be born was Jesus. Second was Satan, and then we all followed. But the Bible says that there is only one God (Isaiah 43:10; 44:6,8; 45:5), that God has eternally been God (Psalm 90:2) -- which means he was never a man on another planet. Since the Bible denies the existence of other gods (and goddesses), the idea that Jesus is the product of a god and goddess couple is rejected.

Mormonism teaches that the sacrifice of Jesus on the cross itself (and receiving it by faith) is not sufficient to bring forgiveness of sins. It teaches that the forgiveness of sins is obtained though a cooperative effort with God; that is, we must be good and follow the laws and ordinances of the Mormon church in order to obtain forgiveness. Consider James Talmage, a very important Mormon figure who said, "The sectarian dogma of justification by faith alone has exercised an influence for evil," (Articles, p. 432), and "Hence the justice of the scriptural doctrine that salvation comes to the individual only through obedience," (Articles, p. 81). This contradicts the biblical doctrine of the forgiveness of sins by grace through faith (Rom. 5:1; 6:23; Eph. 2:8-9) and the doctrine that works are not part of our salvation but a result of them (Rom. 4:5, James 2:14-18).

Why is Mormonism a non Christian religion? It is not Christian because it denies that there is only one God, denies the true Gospel, adds works to salvation, denies that Jesus is the uncreated creator, distorts the biblical teaching of the atonement, and undermines the authority and reliability of the Bible.

Jesus said in Matthew 7:21-23, "Not everyone who says to Me, 'Lord, Lord,' shall enter the kingdom of heaven, but he who does the will of My Father in heaven. Many will say to Me in that day, 'Lord, Lord, have we not prophesied in Your name, cast out demons in Your name, and done many wonders in Your name? And then I will declare to them, 'I never knew you; depart from Me, you who practice lawlessness!"

-the above text is from: http://www.carm.org/lds/lds_christian.htm