'I Will Repay' in the Bible

Friends, do not avenge yourselves; instead, leave room for His wrath. For it is written: Vengeance belongs to Me; I will repay, says the Lord.

I, Paul, write this with my own hand: I will repay it—not to mention to you that you owe me even your own self.

For we know the One who has said, Vengeance belongs to Me, I will repay, and again, The Lord will judge His people.