Deuteronomy 32:40-42

40I raise my hand to heaven and declare: As surely as I live forever,

41when I sharpen my flashing sword, and my hand takes hold of judgment, I will take vengeance on my adversaries and repay those who hate me.

42I will make my arrows drunk with blood while my sword devours flesh — the blood of the slain and the captives, the heads of the enemy leaders.”