Genesis:4:23-24
wbs@Genesis:4:23 @ And Lamech said to his wives, Adah and Zillah, Hear my voice, ye wives of Lamech, hearken to my speech: for I have slain a man to my wounding, and a young man to my hurt.
wbs@Genesis:4:24 @ If Cain shall be avenged seven-fold, truly Lamech seventy and seven-fold.