Exodus 21:12–14
12 i“Whoever strikes a man so that he dies shall be put to death. 13 But jif he did not lie in wait for him, but God let him fall into his hand, then kI will appoint for you a place to which he may flee. 14 lBut if a man willfully attacks another to kill him by cunning, myou shall take him from my altar, that he may die.
1 Kings 2:28
28 When the news came to Joab—for Joab had supported Adonijah although he had not supported Absalom—Joab fled to the tent of the Lord and ucaught hold of the horns of the altar.