Deuteronomy 32:41-45

If I whet my glittering sword, and mine hand take hold on judgment; I will render vengeance to mine enemies, and will reward them that hate me.

I will make mine arrows drunk with blood, and my sword shall devour flesh; and that with the blood of the slain and of the captives, from the beginning of revenges upon the enemy.

Rejoice, O ye nations, with his people: for he will avenge the blood of his servants, and will render vengeance to his adversaries, and will be merciful unto his land, and to his people.

And Moses came and spake all the words of this song in the ears of the people, he, and Hoshea the son of Nun.

And Moses made an end of speaking all these words to all Israel: