Mormons are taught that Jesus and Lucifer are spirit brothers; that Jesus died for Adam's sin only and we must each work out our own salvation for our own sins, (at one time, it was taught that some sins were so heinous that they must be paid for with the sinnerís own blood as Jesus' blood was not sufficient. This is why one of the choices of capital punishment for a prisoner in Utah is still death by a firing squad, so that the blood of the prisoner will fall to the earth as mandated by Brigham Young); there are three heavens and no place of punishment as the Bible describes it, rather a temporary "spirit prison"; the Mormon church is the only true church on the face of the earth and all other churches, clergy, and creeds are apostate and an abomination in God's sight according to Joseph Smith.
Mormon theology teaches: God lives on a planet called "Kolob" with his many celestial wives, having sex continually with them all to produce 'spirit children' to populate this planet.
Decker's Complete Handbook on Mormonism (p. 227-228) quotes Oscar W. McConkie Jr., a leader of the LDS church at one time where he wrote:
"The designation Father is to be taken literally; it signifies that the Supreme Being is the literal Parent or Father of the spirits of all men (Hebrews 12:9). All men, Christ included, were born as his children in pre-existence. (Doctrine and Covenants 93:21-23; Moses 1-4; Abraham 3:22-28.)
It is only by understanding the real and literal sense in which God is our Father that we are able to understand what is meant by the Fatherhood of God and the Brotherhood of Man. In addition to the fact that all men are brothers in the sense that all have descended from Adam, they are also brothers in that they have the same personal Father who begat them in the spirit (Doctrine, p. 278).
Remember, Mormons look at God as a literal father who was their physical, actual father in the preexistence. They look upon this man/god with love and respect. The term is perhaps the most common name of God used by the LDS people.
Joseph Smith regularly used the term as his familiar name for God. His usage instilled in his followers a belief in a special physical relationship with God.