1 Kings 1:49-51

49 And all the guests of Adonijah were afraid, and rose up, and every man went his way.

50 And Adonijah feared because of Solomon. And he arose, and went, and caught hold on the horns of the altar.

51 And it was told Solomon, saying, Behold, Adonijah fears king Solomon, for, lo, he has laid hold on the horns of the altar, saying, Let king Solomon swear to me first that he will not kill his servant with the sword.