Genesis 4

12 No longer will the ground yield good crops for you, no matter how hard you work! From now on you will be a homeless wanderer on the earth."

13 Cain replied to the Lord, "My punishment*4:13 Or My sin. is too great for me to bear! 14 You have banished me from the land and from your presence; you have made me a homeless wanderer. Anyone who finds me will kill me!"

15 The Lord replied, "No, for I will give a sevenfold punishment to anyone who kills you." Then the Lord put a mark on Cain to warn anyone who might try to kill him. 16 So Cain left the Lord’s presence and settled in the land of Nod,*4:16 Nod means "wandering." east of Eden.