To Enoch was born Irad; and Irad begot Mehujael, and Mehujael begot Methushael, and Methushael begot Lamech.
Genesis 4:18
Surrounding context
4:17 And Cain knew his wife, and she conceived and bore Enoch. And he built a city, and called the name of the city after the name of his son--Enoch.
4:18 To Enoch was born Irad; and Irad begot Mehujael, and Mehujael begot Methushael, and Methushael begot Lamech.
4:19 Then Lamech took for himself two wives: the name of one was Adah, and the name of the second was Zillah.