1 Kings 1:50-53

50And Adonijah feared Solomon. So he arose and went and took hold of the horns of the altar.

51Then it was told Solomon, "Behold, Adonijah fears King Solomon, for behold, he has laid hold of the horns of the altar, saying, 'Let King Solomon swear to me first that he will not put his servant to death with the sword.'"

52And Solomon said, "If he will show himself a worthy man, not one of his hairs shall fall to the earth, but if wickedness is found in him, he shall die."

53So King Solomon sent, and they brought him down from the altar. And he came and paid homage to King Solomon, and Solomon said to him, "Go to your house."