1 Kings 1:49-51

49 Adonijah's guests were frightened, so they got up and scattered in all directions.

50 Adonijah was afraid of Solomon. He got up, went [to the tent of meeting,] and took hold of the horns of the altar.

51 Someone told Solomon, "Adonijah is afraid of you, King Solomon. He is holding on to the horns of the altar and saying, 'Make King Solomon swear to me today that he will not have me killed.'"