Deuteronomy 19:11-12 New American Standard Bible (NASB)

¹¹ “But if there is a person who hates his neighbor, and waits in ambush for him and rises up against him and strikes ^[a]him so that he dies, and he flees to one of these cities, ¹² then the elders of his city shall send men and take him from there, and hand him over to the avenger of blood, so that he may die.

1 Kings 2:28-34 New American Standard Bible (NASB)

Joab Executed

²⁸ Now the news came to Joab because Joab had followed Adonijah, though he had not followed Absalom. So Joab fled to the tent of the Lord and took hold of the horns of the altar. ²⁹ And it was reported to King Solomon that Joab had fled to the tent of the Lord, and ^[a]was beside the altar. Then Solomon sent Benaiah the son of Jehoiada, saying, “Go, ^[b]execute him.” ³⁰ So Benaiah came to the tent of the Lord and said to him, “This is what the king has said: ‘Come out.’” But he said, “No, for I will die here.” So Benaiah brought back word to the king, saying, “This is what Joab spoke, and so he answered me.” ³¹ And the king said to him, “Do just as he has spoken, and ^[c]execute him and bury him, so that you may remove from me and from my father’s house the blood which Joab shed without ^[d]justification. ³² The Lord will return his blood on his own head, because he ^[e]struck two men more righteous and better than he, and killed them with the sword, while my father David did not know about it: Abner the son of Ner, commander of the army of Israel, and Amasa the son of Jether, commander of the army of Judah. ³³ So their blood shall return on the head of Joab and on the head of his ^[f]descendants forever; but for David and his ^[g]descendants, and his house and his throne, may there be peace from the Lord forever.” ³⁴ Then Benaiah the son of Jehoiada went up and ^[h]struck him and put him to death, and he was buried at his own house in the wilderness.