'Avenge the Blood of' in the Bible

"Rejoice, heathen with his people, for he will avenge the blood of his servants, and will avenge him of his adversaries, and will be merciful unto the land of his people."

that thou slay the household of Ahab thy master. For I,' sayeth the LORD, 'will avenge the blood of my servants the prophets, and the blood of all the servants of the LORD, of the hand of Jezebel -

And the LORD said unto him, "Call his name Jezreel, for I will shortly avenge the blood of Jezreel upon the house of Jehu, and will bring the kingdom of the house of Israel to an end.