Beloved, never avenge yourselves, but leave room for the wrath of God, for it is written, “Vengeance is mine; I will repay, says the Lord.” Instead, “if your enemies are hungry, feed them; if they are thirsty, give them something to drink, for by doing this you will heap burning coals on their heads.” Do not be overcome by evil, but overcome evil with good.

[μὴ ἑαυτοὺς ἐκδικοῦντες, ἀγαπητοί, ἀλλὰ δότε τόπον τῇ ὀργῇ, γέγραπται γάρ, ” Ἐμοὶ ἐκδίκησις, ἐγὼ ἀνταποδώσω,” λέγει κύριος. ἀλλ᾽ ” ἐὰν πεινᾷ ὁ ἐχθρός σου, ψώμιζε αὐτόν· ἐὰν διψᾷ, πότιζε αὐτόν· τοῦτο γὰρ ποιῶν ἄνθρακας πυρὸς σωρεύσεις ἐπὶ τὴν κεφαλὴν αὐτοῦ.” μὴ νικῶ ὑπὸ τοῦ κακοῦ ἀλλὰ νίκα ἐν τῷ ἀγαθῷ τὸ κακόν.]

The Bible (The New Testament) (AD 1st - 2nd C) Christian sacred scripture

Romans 12: 19-21 [NRSV (2021 ed.)]
    (Source)

The two passages quoted are Deut. 32:35 and Proverbs 25:21-22.

(Source (Greek)). Alternate translations:

Dearly beloved, avenge not yourselves, but rather give place unto wrath: for it is written, Vengeance is mine; I will repay, saith the Lord. Therefore if thine enemy hunger, feed him; if he thirst, give him drink: for in so doing thou shalt heap coals of fire on his head. Be not overcome of evil, but overcome evil with good.
[KJV (1611)]

Never try to get revenge; leave that, my friends, to God's anger. As scripture says: vengeance is mine - I will pay them back, the Lord promises. But there is more: If your enemy is hungry, you should give him food, and if he is thirsty, let him drink. Thus you heap red-hot coals on his head. Resist evil and conquer it with good.
[JB (1966)]

Never try to get revenge: leave that, my dear friends, to the Retribution. As scripture says: Vengeance is mine -- I will pay them back, the Lord promises. And more: If your enemy is hungry, give him something to eat; if thirsty, something to drink. By this, you will be heaping red-hot coals on his head. Do not be mastered by evil, but master evil with good.
[NJB (1985)]

Never take revenge, my friends, but instead let God's anger do it. For the scripture says, “I will take revenge, I will pay back, says the Lord.” Instead, as the scripture says: “If your enemies are hungry, feed them; if they are thirsty, give them a drink; for by doing this you will make them burn with shame.” Do not let evil defeat you; instead, conquer evil with good.
[GNT (1992 ed.)]

Don’t try to get revenge for yourselves, my dear friends, but leave room for God’s wrath. It is written, Revenge belongs to me; I will pay it back, says the Lord. Instead, If your enemy is hungry, feed him; if he is thirsty, give him a drink. By doing this, you will pile burning coals of fire upon his head. Don’t be defeated by evil, but defeat evil with good.
[CEB (2011)]