Genesis 4

12 When you till the ground, it will no longer yield its produce to you. You will be a fugitive and a wanderer on the earth."

13 But Cain said to the LORD, "My punishment*4:13 Or guilt or sin is greater than I can bear. 14 Behold, 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!"*4:15 LXX, Vulgate, and Syriac; Hebrew "Very well!" or "Therefore:" 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.

16 So Cain went out from the presence of the LORD and settled in the land of Nod,*4:16 Nod means wandering. east of Eden.