Deuteronomy 19:12
then the elders of his city shall send and take him from there and deliver him into the hand of the avenger of blood, and he shall die.
1 Kings 2:5-6
Moreover thou knowest also what Joab, the son of Zeruiah, did to me and what he did to the two captains of the host of Israel, unto Abner, the son of Ner and unto Amasa, the son of Jether, whom he slew, shedding the blood of war in peace and putting the blood of war upon his girdle that was about his loins and in his shoes that were on his feet.
1 Kings 2:28-34
And the news came to Joab, for Joab had turned after Adonijah, though he had not turned after Absalom. And Joab fled unto the tabernacle of the LORD and caught hold on the horns of the altar.
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