'Avenged' in the Bible

Then Yahweh said to him, "Therefore, whoever kills Cain will be avenged sevenfold." Then Yahweh put a sign on Cain so that whoever found him would not kill him.

If Cain is avenged sevenfold, Then Lamech [will be avenged] seventy and seven [times].

And if a man strikes his male slave or his female slave with the rod and he dies under his hand, he will surely be avenged.

Yet if he survives a day or two days, he will not be avenged, because he is his money.

so that the violence done to the seventy brothers of Abimelech would be avenged and their blood be placed on Abimelech their brother, who killed them, and on the lords of Shechem, {who helped} to kill his brothers.

Now the men of Israel were hard pressed on that day, because Saul had made the army take an oath, saying, "Cursed be the man who eats [any] food until evening, when I will have avenged myself on my enemies!" So none of the army tasted [any] food.

Thus says the Lord Yahweh: "Because of the doings of Edom in avenging himself [with] vengeance for the house of Judah, and [so] they became very guilty and they avenged themselves on them,"

Thus says the Lord Yahweh: "Because of the {acting} of [the] Philistines in vengeance, so that they avenged themselves relentlessly with malice in themselves for destruction {with everlasting hostility},

And [when he] saw one of them being unjustly harmed, he defended [him] and {avenged} the one who had been oppressed [by] striking down the Egyptian.

because his judgments [are] true and righteous, because he has passed judgment on the great prostitute who corrupted the earth with her sexual immorality, and has avenged the blood of his slaves {shed by} her hand!"