In Abraham 3, God shows Abraham the premortal world:
Now the Lord had shown unto me, Abraham, the intelligences that were organized before the world was; and among all these there were many of the noble and great ones;
And God saw these souls that they were good, and he stood in the midst of them, and he said: These I will make my rulers; for he stood among those that were spirits, and he saw that they were good; and he said unto me: Abraham, thou art one of them; thou wast chosen before thou wast born.
Jeff Lindsay notes how this is not found in the Bible but is found in other ancient documents:
Why does the Book of Abraham correspond to all these other ancient documents?