His suggestion was a violation of a law that has no beginning and has no end. To say I don’t comprehend eternity, where God came from, how I’ll become a God, or how Christ brought about the atonement is an understatement, but to requisition the power of the universe as a spirit entity, before ever going through the required mortality of the system, is absurd.
After the eternal law of no unclean thing can dwell in the presence of God and Adam remove Lucifer, the physical creation of the earth is completed and Adam and Eve are placed thereon.
It was during this war that we each went from Free Agents to Moral Agents unto God. We chose a side. After that choice, we each made a covenant with God and were foreordained to exaltation. As agents unto God, we chose to follow His commandments and covenanted on our eternal salvation we would follow through.
By definition, we gave up the choice to sin. However, as part of agency, we still have the ability to choose evil or sin, but we don’t have the right. That very subtle difference is a stumbling block to the understanding of agency.