Moses 5

The scene is set with Adam and Eve beginning their lives outside of the Garden of Eden. Working hard each day to till the earth while following the commandment of multiplying and replenishing the earth, they spread across the land. A command is given to them to offer the firstlings of their flocks unto the Lord, and after it is completed, an angel visits to explain the reasoning and symbolism of the firstborn offering. This act of faith by Adam allowed him to receive the Holy Ghost's presence with him to bear record of the Father and the Only Begotten Son.
Being somewhat reborn with the presence of the Holy Ghost, Adam prophecies concerning all the families on earth and is supported by Eve in the understanding of the necessity of knowing good and evil to progress. Unfortunately, Satan comes among some of them and tempts them to be carnal, sensual, and devilish in the very first worldly (out of Eden) temptation. The people are taught about the need to repent after being tempted, and learn about the consequences for not repenting.
Cain, a son of Adam and Eve, listens to the voice of Satan and makes an offering to the Lord that is reject, but is angry because the Lord did not respect his offering while his brother Adam's offering was accepted. The Lord speaks to Cain about his fall in countenance ands warns him of the punishment if he does not repent, but he rejects the council and instead conspired with satan to create secret combinations. Given these secrets from satan, Cain thinks himself a mastermind and murders his brother for the purpose of gaining his freedom from jealousy and his brothers land. The Lord calls him out on it though and punishes him to be a fugitive and vagabond that can never till the ground and yield anything.
Thinking that his punishment is too hard to bear, he says that the Lord is unfair and he will surely be slain by someone for his iniquities. The Lord marks him so that all may know his shame and none will slay him, but he will be forced to live out his shameful days east of Eden in Nod. Through his lineage, there is born a man named Lamech who took two wives (I don't know if this is common or the first time this has happened), and entered into a covenant with satan just like Cain to kill a young man for oath's sake. Lamech told his two wives what he had done, and after they had seen that the house hold was cut off from the presence of God, they rebelled against Lamech and told everyone about the evil he had done.
Lamech was despised and cast out, but the works of darkness still prevailed. God cursed the earth and the sons of men because they would not hardent unto His voice telling the Gospel truths about the Only Begotten Son coming in the meridian of time. Christ was prepared from the foundation of the earth to save the souls of all mankind. The angels of the Lord were the ones that first delivered this message to Adam, and the Holy Ghost was the confirmation.