There's an interesting duality that is being set up throughout the Book of Moses. It has to do with duplicated names. (I really wish I could find the internet source that first pointed this out to me. I tried to find it, but I couldn't.)
* There is Enoch the son of Cain, and there is the holy Enoch who builds the city Zion, preaches, and walks with God.
* Cain's Enoch built his own city too, but it wasn't Zion.
* There is the righteous land of Cainan, where the good Enoch came from (Moses 6:17,41), and there is the bad people of Canaan (Moses 7:6-8) who live in a hot, barren, cursed wilderness and who destroy people.
* There is the good Lamech, the father of Noah, and then there is the bad Lamech, who killed his great grandfather.
* There is Methusael (great-grandson of the bad Enoch) and then there is Methuselah (son of the good Enoch).
We are being shown the two possible ways we can go. One leads up, the other leads down. We are shown the author of each way, and the consequences of each way. They each have their organization and their covenants, but one is counterfeit of the other. One leads to life, the other leads to death. We choose which one we take.