15 The Lord said to him, "It won’t happen; anyone who kills Cain will be paid back seven times. The Lord put a sign on Cain so that no one who found him would assault him.
16 Cain left the Lord’s presence, and he settled down in the land of Nod, east of Eden.
17 Cain knew his wife intimately. She became pregnant and gave birth to Enoch. Cain built a city and named the city after his son Enoch.
18 Irad was born to Enoch. Irad fathered Mehujael, Mehujael fathered Methushael, and Methushael fathered Lamech.
19 Lamech took two wives, the first named Adah and the second Zillah.
20 Adah gave birth to Jabal; he was the ancestor of those who live in tents and own livestock.
21 His brother’s name was Jubal; he was the ancestor of those who play stringed and wind instruments.