Genesis 4:16-18

4:16 So Cain went out from the presence of the Lord and lived in the land of Nod, east of Eden.

The Beginning of Civilization

4:17 Cain had marital relations with his wife, and she became pregnant and gave birth to Enoch. Cain was building a city, and he named the city after his son Enoch. 4:18 To Enoch was born Irad, and Irad was the father of Mehujael. Mehujael was the father of Methushael, and Methushael was the father of Lamech.