He drove out the man; and at the east of the garden of Eden he placed the cherubim, and a flaming sword which turned every way, to guard the way to the tree of life.
And Adam knew his wife again, and she bore a son and called his name Seth, for she said, “God has appointed for me another child instead of Abel, for Cain slew him.”
and called his name Noah, saying, “Out of the ground which the Lord has cursed this one shall bring us relief from our work and from the toil of our hands.”
and not be like Cain who was of the evil one and murdered his brother. And why did he murder him? Because his own deeds were evil and his brother's righteous.