New Revised Standard Version
For we know the one who said, “Vengeance is mine, I will repay.” And again, “The Lord will judge his people.”

Contemporary English Version
We know that God has said he will punish and take revenge. We also know that the Scriptures say the Lord will judge his people.

New American Bible
We know the one who said: “Vengeance is mine; I will repay,” and again: “The Lord will judge his people.”

Douay-Rheims Bible
For we know him that hath said: Vengeance belongeth to me, and I will repay. And again: The Lord shall judge his people.

For we know him that hath said: Vengeance belongeth to me, and I will repay. And again: The Lord shall judge his people.

Vengeance.

Deuteronomy 32:35 Revenge is mine, and I will repay them in due time, that their foot may slide: the day of destruction is at hand, and the time makes haste to come.

Psalm 94:1 The Lord is the God to whom revenge belongeth: the God of revenge hath acted freely.

Isaiah 59:17 He put on justice as a breastplate, and a helmet of salvation upon his head: he put on the garments of vengeance, and was clad with zeal as with a cloak.

Isaiah 61:2 To proclaim the acceptable year of the Lord, and the day of vengeance of our God: to comfort all that mourn:

Isaiah 63:4 For the day of vengeance is in my heart, the year of my redemption is come.

Nahum 1:2 The Lord is a jealous God, and a revenger: the Lord is a revenger, and hath wrath: the Lord taketh vengeance on his adversaries, and he is angry with his enemies.

Romans 12:19 Revenge not yourselves, my dearly beloved; but give place unto wrath, for it is written: Revenge is mine, I will repay, saith the Lord.

Romans 13:4 For he is God's minister to thee, for good. But if thou do that which is evil, fear: for he beareth not the sword in vain. For he is God's minister: an avenger to execute wrath upon him that doth evil.

The Lord shall.

Deuteronomy 32:36 The Lord will judge his people, and will have mercy on his servants: he shall see that their hand is weakened, and that they who were shut up have also failed, and they that remained are consumed.

Psalm 50:4 He shall call heaven from above, and the earth, to judge his people.

Psalm 96:13 before the face of the Lord, because he cometh: because he cometh to judge the earth. He shall judge the world with justice, and the people with his truth.

Psalm 98:9 At the presence of the Lord: because he cometh to judge the earth. He shall judge the world with justice, and the people with equity.

Psalm 135:14 For the Lord will judge his people, and will be entreated in favour of his servants.

Ezekiel 18:30 Therefore will I judge every man according to his ways, O house of Israel, saith the Lord God. Be converted, and do penance for all your iniquities: and iniquity shall not be your ruin.

Ezekiel 34:17 And as for you, O my flocks, thus saith the Lord God: Behold I judge between cattle and cattle, of rams and of he goats.

2 Corinthians 5:10 For we must all be manifested before the judgment seat of Christ, that every one may receive the proper things of the body, according as he hath done, whether it be good or evil.