The following are excerpts from an official LDS proclamation about the family.
A PROCLAMATION TO THE WORLD
The First Presidency and Council of the Twelve Apostles of The Church of Jesus Christ of Latter-day Saints
ALL HUMAN BEINGS—male and female—are created in the image of God. Each is a beloved spirit son or daughter of heavenly parents, and, as such, each has a divine nature and destiny.
IN THE PREMORTAL REALM, spirit sons and daughters knew and worshipped God as their Eternal Father and accepted His plan by which His children could obtain a physical body and gain earthly experience to progress toward perfection and ultimately realize their divine destiny as heirs of eternal life.
Now, all of us who study Mormonism know they believe that men can become gods (sorry ladies, you’re just a goddess due to marriage to your god husband), but not too many of the average people on the street knows this. Nor does the average person understand about Mormon pre-mortal theology.
These two paragraphs plainly demonstrate that Mormons believe all people (and all angels, as well as Jesus) are brothers and sisters in the pre-mortal existence, and that they have a divine nature which will help them to become gods in the afterlife.
Of course none of this is biblical, and the god they are children of is a false, non-existent god which Joseph Smith made up out of his wild imagination. This is another bit of evidence proving that the LDS is not a Christian church.