'Avenge' in the Bible

And there was a widow in that city; and she came unto him, saying, Avenge me of mine adversary.

Yet because this widow troubleth me, I will avenge her, lest by her continual coming she weary me.

And shall not God avenge his own elect, which cry day and night unto him, though he bear long with them?

I tell you that he will avenge them speedily. Nevertheless when the Son of man cometh, shall he find faith on the earth?

Dearly beloved, avenge not yourselves, but rather give place unto wrath: for it is written, Vengeance is mine; I will repay, saith the Lord.

and being in readiness to avenge every disobedience, whenever your obedience may be fulfilled.

And they cried with a loud voice, saying, How long, O Lord, holy and true, dost thou not judge and avenge our blood on them that dwell on the earth?

because true and righteous are His judgments, because He did judge the great whore who did corrupt the earth in her whoredom, and He did avenge the blood of His servants at her hand;'