Genesis 4:22-24

And Zillah, she also bare Tubalcain, an instructer of every artificer in brass and iron: and the sister of Tubalcain {was} Naamah. {instructer: Heb. whetter} And Lamech said unto his wives, Adah and Zillah, Hear my voice; ye wives of Lamech, hearken unto my speech: for I have slain a man to my wounding, and a young man to my hurt. {I have...: or, I would slay a man in my wound, etc.} {to my hurt: or, in my hurt} If Cain shall be avenged sevenfold, truly Lamech seventy and sevenfold.