[15] And the LORD said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the LORD set a mark upon Cain, lest any finding him should kill him. [16] And Cain went out from the presence of the LORD, and dwelt in the land of Nod, on the east of Eden. [17] And Cain knew his wife; and she conceived, and bare Enoch: and he builded a city, and called the name of the city, after the name of his son, Enoch. [18] And unto Enoch was born Irad: begat Mehujael: begat Methusael: begat Lamech. [19] And Lamech took unto him two wives: the name of the one was Adah, and the name of the other Zillah. [20] And Adah bare Jabal: he was the father of such as dwell in tents, and of such as have cattle. [21] And his brother's name was Jubal: he was the father of all such as handle the harp and organ. [22] And Zillah, she also bare Tubalcain, an instructer of every artificer in brass and iron: and the sister of Tubalcain was Naamah. [23] And Lamech said unto his wives, Adah and Zillah, Hear my voice; ye wives of Lamech, hearken unto my speech: for I have slain to my wounding, and a young man to my hurt. [24] If Cain shall be avenged sevenfold, truly Lamech seventy and sevenfold. [25] knew his wife again; and she bare a son, and called his name Seth: For God, said she, hath appointed me another seed instead of Abel, whom Cain slew. [26] And to Seth, to him also there was born a son; and he called his name Enos: then began men to call upon the name of the LORD.