Hebrews 10:30

For we know Him who said, “Vengeance is Mine; I will repay,” and again, “The Lord will judge His people.”

Note Deuteronomy 32:35 (see also LXX)

Note Deuteronomy 32:36; Psalms 135:14

For we know him that hath said, Vengeance belongeth unto me, I will recompense, saith the Lord. And again, The Lord shall judge his people.

For we know him who said, “Vengeance belongs to me. I will repay,” says the Lord. Again, “The Lord will judge his people.”

For we know him that said, Vengeance belongeth unto me, I will recompense. And again, The Lord shall judge his people.