3 In the course of time Cain brought an offering to the Lord from the fruit of the ground,
4 while Abel, for his part, brought the fatty portion of the firstlings of his flock. The Lord looked with favor on Abel and his offering,
5 but on Cain and his offering he did not look with favor. So Cain was very angry and dejected.
6 Then the Lord said to Cain: Why are you angry? Why are you dejected?
7 If you act rightly, you will be accepted; but if not, sin lies in wait at the door: its urge is for you, yet you can rule over it.
8 Cain said to his brother Abel, “Let us go out in the field.” When they were in the field, Cain attacked his brother Abel and killed him.
9 Then the Lord asked Cain, Where is your brother Abel? He answered, “I do not know. Am I my brother’s keeper?”