Deja vu? Like father like son. Adam and Eve's son Cain murders his brother and ignores God's warning of sin waiting at his door. God confronts Cain, while Cain tries to divert God's attention. However, God attacks the problem at the head and Cain is punished.

A main take away is the danger of sin and its effects. In addition, the repetition of sinful patterns. Because Cain doesn't learn from his parents, he had to experience a similar set of consequences.