Here are a few that I like:
Moses 1:33
"And worlds without number have I created; and I also created them for mine own purpose; and by the son I have created them, which is mine only begotten."
Abraham 3:22-23
"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."
I like all of Abraham 3, actually. So confusing...but I like it.
Romans 8:16-17
"The Spirit itself beareth witness with our spirit, that we are the children of God:
And if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with him, that we may be also glorified together."
And this last one is probably what I'll put on my mission plaque when that time comes. If I get one.
D&C 76:22-24
"And now, after the many testimonies which have been given of him, this is the testimony, last of all, which we give of him: That he lives!
For we saw him, even on the right hand of God; and we heard the voice bearing record that he is the Only Begotten of the Father—
That by him, and through him, and of him, the worlds are and were created, and the inhabitants thereof are begotten sons and daughters unto God."