Genesis 4:6-8 Living Bible (TLB)
6 “Why are you angry?” the Lord asked him. “Why is your face so dark with rage? 7 It can be bright with joy if you will do what you should! But if you refuse to obey, watch out. Sin is waiting to attack you, longing to destroy you. But you can conquer it!”
8 One day Cain suggested to his brother, “Let’s go out into the fields.” And while they were together there, Cain attacked and killed his brother.