Deuteronomy 32:41-47

41If I sharpen the lightning of My sword, And My hand takes hold of judgment, I will render vengeance on My adversaries, And I will repay those who hate Me.

42I will make My arrows drunk with blood, And My sword will devour flesh, With the blood of the slain and the captives, From the heads of the leaders of the enemy.’

43Rejoice, O nations, with His people; For He will avenge the blood of His servants, And will render vengeance on His adversaries, And will atone for His land and His people.”

44Then Moses came and spoke all the words of this song in the hearing of the people, he and Joshua the son of Nun.

45When Moses had finished speaking all these words to all [the people of] Israel,

46he said to them, “Take to heart all the words of warning which I am speaking to you today; and you shall command your children to observe them carefully—to do all the words of this law.

47For it is not an empty or trivial matter for you; indeed it is your [very] life. By [honoring and obeying] this word you will live long in the land, which you are crossing the Jordan to possess.”