For he is a helper of God to thee for what is good. But if thou do what is evil, be afraid, for he does not bear the sword in vain. For he is a helper of God, vengeful for wrath to the man who commits evil.
And LORD said to him, Therefore whoever kills Cain, vengeance shall be taken on him sevenfold. And LORD appointed a sign for Cain, lest any who finds him should smite him.
if he rises again, and walks abroad upon his staff, then he who smote him shall be acquitted. Only he shall pay for the loss of his time, and shall cause him to be thoroughly healed.