Genesis 4:17

¹⁵  And the LORD said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the LORD set a mark upon Cain, lest any finding him should kill him.

¹⁶  And Cain went out from the presence of the LORD, and dwelt in the land of Nod, on the east of Eden.

¹⁷  And Cain knew his wife; and she conceived, and bare Enoch: and he builded a city, and called the name of the city, after the name of his son, Enoch.

¹⁸  And unto Enoch was born Irad: and Irad begat Mehujael: and Mehujael begat Methusael: and Methusael begat Lamech.

¹⁹  And Lamech took unto him two wives: the name of the one was Adah, and the name of the other Zillah.