Deuteronomy 19:12
then the elders of his city shall send and take him from there, and they shall give him into the hand of the avenger of blood, and he shall be put to death.
1 Kings 2:5-6
"Moreover, you also know what Joab the son of Zeruiah did to me when he dealt with the two commanders of the armies of Israel, to Abner son of Ner and to Amasa son of Jether, and he murdered them and put the blood of war in [a time of] peace. He put the blood of war on the leather belt that was on his waist and on the sandals which were on his feet.
1 Kings 2:28-34
When the message came to Joab (now Joab {had supported} Adonijah but {had not supported} Absalom), he fled to the tent of Yahweh and grasped the horns of the altar.
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