And it was told Solomon, saying, Behold, Adonijah fears king Solomon: for, lo, he has caught hold on the horns of the altar, saying, Let king Solomon swear to me today that he will not slay his servant with the sword.
Then tidings came to Joab: for Joab had followed after Adonijah, though he did not follow after Absalom. And Joab fled to the tabernacle of the LORD, and caught hold on the horns of the altar.
And Aaron shall make an atonement upon the horns of it once in a year with the blood of the sin offering of atonements: once in the year shall he make atonement upon it throughout your generations: it is most holy to the LORD.