When the plan for our salvation was presented to us in the premortal spirit world, we were so happy that we shouted for joy (see Job 38:7).
Gospel Principles, official publication of The Church of Jesus Christ of Latter-day Saints, pg.9, 13
Okay, let’s look at Job 38:7:
When the morning stars sang together, and all the sons of God shouted for joy?
Who are the “morning stars” and who are the “sons of God.” The parallelism is that they are one and the same individuals; i.e. they are angels. We see this in Genesis 6, Job 1:6, Job 2:1, and Satan is one of them.
What was the reason the angels shouted for joy? It was because they observed the creation (the context of Job 38 ff).
So, just what are angels? They are spiritual beings created before man was created, and therefore a part of the creation they watched was man. Angels are not pre-human creatures, nor are they humans who have died.
Again I must point the Mormon to 1 Corinthians 15:44-46 which says mankind first exists as a natural body and then becomes a spiritual body after death. No where in the Bible will you find anything that even hints of preexistence. The LDS Book of Abraham is where this doctrine comes from, and that text has been proven to be a false work by Joseph Smith.
So there are three major lies in this one sentence:
1. There is no such thing as a premortal spirit world.
2. Angels are not pre-existing humans.
3. The angels shouted for joy because of the creation, not because of any “plan of our salvation.”
Just remember, friends: Satan is the father of lies.