[And] not be like Cain who [took his nature and got his motivation] from the evil one and slew his brother. And why did he slay him? Because his deeds (activities, works) were wicked and malicious and his brother's were righteous (virtuous).
And I will put enmity between you and the woman, and between your offspring and her Offspring; He will bruise and tread your head underfoot, and you will lie in wait and bruise His heel. [Gal. 4:4.]
And Adam's wife again became pregnant, and she bore a son and called his name Seth. For God, she said, has appointed for me another child instead of Abel, for Cain slew him.
He named him Noah, saying, This one shall bring us relief and comfort from our work and the [grievous] toil of our hands due to the ground being cursed by the Lord.
So [God] drove out the man; and He placed at the east of the Garden of Eden the cherubim and a flaming sword which turned every way, to keep and guard the way to the tree of life. [Rev. 2:7; 22:2, 14, 19.]