If Cain shall be avenged sevenfold, Truly Lamech seventy and sevenfold.
Jesus saith unto him, I say not unto thee, Until seven times: but, Until seventy times seven.
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.