1 Kings 2:26 (KJV)

Now therefore, as the Lord liveth, which hath established me, and set me on the throne of David my father, and who hath made me an house, as he promised, Adonijah shall be put to death this day.

And king Solomon sent by the hand of Benaiah the son of Jehoiada; and he fell upon him that he died.

And unto Abiathar the priest said the king, Get thee to Anathoth, unto thine own fields; for thou art worthy of death: but I will not at this time put thee to death, because thou barest the ark of the Lord God before David my father, and because thou hast been afflicted in all wherein my father was afflicted.

So Solomon thrust out Abiathar from being priest unto the Lord; that he might fulfil the word of the Lord, which he spake concerning the house of Eli in Shiloh.

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.