Deuteronomy 32:42 in the World English Bible
I will make my arrows drunk with blood. My sword shall devour flesh with the blood of the slain and the captives, from the head of the leaders of the enemy.”
Context
41 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.
42 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.
43 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.