Genesis 4:17-18 NRS

17 Cain knew his wife, and she conceived and bore Enoch; and he built a city, and named it Enoch after his son Enoch.
18 To Enoch was born Irad; and Irad was the father of Mehujael, and Mehujael the father of Methushael, and Methushael the father of Lamech.