Deuteronomy 32:41-43

41I will make my sword very sharp. It will move like lightning as I hold it in my hand. I will punish my enemies as they deserve. I will pay back everyone who hates me.

42My arrows will have blood all over them. My sword will cut into the bodies of my enemies. Everyone that I take hold of will die. I will cut off the heads of their leaders.” ’

43So you people of other nations, join with God's people to praise him! He will punish those who have killed his servants. He will punish all his enemies. But he will forgive the sins of his people, and he will make their land clean again.