I know, it seems preachy and I didn’t explain myself well in those 3 panels but I was tired and nothing else happened today. However, let me try to explain more clearly, so be forewarned:
[if you don't want to read about religion, read no further... also, go back in time & don't read that comic up there]
Nearby the above verse, 2 Nephi 2:23 says that if Adam and Eve hadn’t sinned against God “they would have had no children; wherefore they would have remained in a state of innocence, having no joy, for they knew no misery; doing no good, for they knew no sin.” And if sin is that by which good is known, God must have been predated by sin for His goodness to be established at creation, before The Fall… and fault would have to exist for creation to be good, as God states it, because one cannot be known without the other, according to this line of reasoning. Nevermind the clearly stated “be fruitful and multiply, fill the earth and subdue it” command in Genesis 1:28, before Adam & Eve fell, which 2 Nephi 2:22-25 seems to forget.
So since 2 Nephi 2 says that mankind would not have proliferated without the occurrence of sin and that for which mankind is made (by way of The Fall) is joy, that seems to say that Satan, the Adversary, is on our side, since his deception was a parlay into joy instead of the sin of dishonoring God’s sovereignty leading to death (Romans 6:23; again, a clear choice between 2 opposites). So, joy is our reason for living and we live because of sin and sin was caused by Satan… which means that Satan should not be our Adversary because he is that by which we may have joy. (I should point out that I asked a Mormon about this and he said that’s not what he was taught about it, but that’s the linear progression of those verses, linguistically.) Of course, Satan being the cause and proliferator of our joy is antithetical to the Bible wherein we were made to commune with God & hold Him as Lord (Adam & Eve with God in the Garden, Enoch walking with God, Elijah, Moses and other prophets declaring the correct, Godly behavior because of communing with God, etc). Furthermore, Adam (from “adamah” for “earth”) & Eve (the Anglicization of the Hebrew “chavvah” for “life [source]“) lived in the garden of Eden (which, in Hebrew, means Pleasure). Now, how can one abide in untarnished pleasure without joyful satisfaction? They would have no need to sin in order to know God’s joy.