GENESIS 4:15
And the LORD said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the LORD appointed a sign for Cain, lest any finding him should smite him.And the LORD said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the LORD appointed a sign for Cain, lest any finding him should smite him.