12When you till the ground, it will no longer yield its produce to you. You will be a fugitive and a wanderer on the earth.”
13But Cain said to the LORD, “My punishment is greater than I can bear.
14Behold, this day You have driven me from the face of the earth, and from Your face I will be hidden; I will be a fugitive and a wanderer on the earth, and whoever finds me will kill me.”
15“Not so!” replied the LORD. “If anyone slays Cain, then Cain will be avenged sevenfold.” And the LORD placed a mark on Cain, so that no one who found him would kill him.
— Genesis 4:12-15