Verses with the word avenged in the New Testament (3 verses):

Acts 7:24
And seeing one of them suffer wrong, he defended him, and avenged him that was oppressed, and smote the Egyptian:

Revelation 18:20
Rejoice over her, thou heaven, and ye holy apostles and prophets; for God hath avenged you on her.

Revelation 19:2
For true and righteous are his judgments: for he hath judged the great whore, which did corrupt the earth with her fornication, and hath avenged the blood of his servants at her hand.