2 Kings 11:8

But if a man come presumptuously upon his neighbor, to slay him with guile; thou shalt take him from mine altar, that he may die.

Then tidings came to Joab: for Joab had turned after Adonijah, though he turned not after Absalom. And Joab fled unto the tabernacle of the LORD, and caught hold on the horns of the altar. And it was told king Solomon that Joab was fled unto the tabernacle of the LORD; and, behold, he is by the altar. Then Solomon sent Benaiah the son of Jehoiada, saying, Go, fall upon him. And Benaiah came to the tabernacle of the LORD, and said unto him, Thus saith the king, Come forth. And he said, Nay; but I will die here. And Benaiah brought the king word again, saying, Thus said Joab, and thus he answered me. And the king said unto him, Do as he hath said, and fall upon him, and bury him; that thou mayest take away the innocent blood, which Joab shed, from me, and from the house of my father.

But Jehoiada the priest commanded the captains of the hundreds, the officers of the host, and said unto them, Have her forth without the ranges: and him that followeth her kill with the sword. For the priest had said, Let her not be slain in the house of the LORD.

And the Levites shall compass the king round about, every man with his weapons in his hand; and whosoever else cometh into the house, he shall be put to death: but be ye with the king when he cometh in, and when he goeth out.