Genesis 4:16-19

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

17Cain 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.

18To Enoch was born Irad, and Irad was the father of Mehujael. Mehujael was the father of Methushael, and Methushael was the father of Lamech.

19Lamech took two wives for himself; the name of the first was Adah, and the name of the second was Zillah.