Genesis 4:23-25

Lamech boasted to his wives: “Listen to me, Dawn and Dusk! Mark my words, O wives of Lamech! I have killed a man for wounding me, and a young man for bruising me. If killing Cain costs seven lives, for Lamech, it will cost seventy-seven!” Adam slept with his wife again and she bore a son whom she named Seth, meaning “appointed,” for she declared, “God has appointed for me another son to replace Abel, because Cain killed him.”