Have you ever noticed the location of the speech pattern shift from "God" to "Gods" between Abraham 3 and 4?
Abraham 3:20 And the Lord thy God sent his angel...
Abraham 3:23 And God saw these souls that they were good
Abraham 3:24 And there stood one among them that was like unto God and he said unto those that were with him: We will go down for there is space there and we will take of these materials, and we will make an earth whereon these may dwell;
Abraham 4:1 they, that is the Gods, organized and formed the heavens and the earth
What happens between 3:24 and 4:1?
"And the Lord said: Whom shall I send? And on answered like unto the Son of Man: Here am I, send me. And another answered and said: Here am I, send me. And the Lord said: I will send the first."
Jesus is chosen to be the savior of the world.
He becomes, as he said during his mortal ministry "one with the Father". He becomes, as Abinidi tried to explain before Jesus was born, intrinsic to the trinity, a being who is God.
And, so, in chapter 4, Jesus isn't referred to as he is in Abraham 3:24 where Jesus is "like unto God". He has become God.
And "Gods" are the ones who create earth in chapter 4, and one of them was the Father and a second was certainly Jesus, for, as John wrote, "all things were made by him; and without him was not any thing made that was made."
I've heard it surmised and postulated that the references to "Gods" in the last couple of chapters in Abraham refer to other heavenly beings, Gods like our Father in Heaven, co-equals with him on some cosmic scale independent of our worship of God the Father here on earth.
But I think it's rather likely that the change from "God" to "Gods" at exactly this point in the narrative is a strategically placed conscious effort to more clearly indicate the changed, God-nature of Christ: who he becomes as he volunteers for and is given the task to be the Savior of the world and commences his part in the Creation.