20. Adah gave birth to Jabal; he was the father of those who dwell in tents and have livestock.
21. His brother's name was Jubal; he was the father of all those who play the lyre and pipe.
22. As for Zillah, she also gave birth to Tubal-cain, the forger of all implements of bronze and iron; and the sister of Tubal-cain was Naamah.
23. Lamech said to his wives, "Adah and Zillah, Listen to my voice, You wives of Lamech, Give heed to my speech, For I have killed a man for wounding me; And a boy for striking me;
24. If Cain is avenged sevenfold, Then Lamech seventy-sevenfold."