1 Kings 2:25

21She said, “Let Abishag the Shunammite be given to Adonijah your brother as wife.”

22King Solomon answered his mother, “Why do you ask Abishag the Shunammite for Adonijah? Ask for him the kingdom also, for he is my elder brother; even for him, and for Abiathar the priest, and for Joab the son of Zeruiah.”

23Then King Solomon swore by the LORD, saying, “God do so to me, and more also, if Adonijah has not spoken this word against his own life.

24Now therefore as the LORD lives, who has established me and set me on my father David’s throne, and who has made me a house as he promised, surely Adonijah shall be put to death today.”

25King Solomon sent Benaiah the son of Jehoiada; and he fell on him, so that he died.

26To Abiathar the priest the king said, “Go to Anathoth, to your own fields, for you are worthy of death. But I will not at this time put you to death, because you bore the Lord GOD’s ark before David my father, and because you were afflicted in all in which my father was afflicted.”

27So Solomon thrust Abiathar out from being priest to the LORD, that he might fulfill the LORD’s word which he spoke concerning the house of Eli in Shiloh.

28This news came to Joab; for Joab had followed Adonijah, although he didn’t follow Absalom. Joab fled to the LORD’s Tent, and held onto the horns of the altar.

29King Solomon was told, “Joab has fled to the LORD’s Tent; and behold, he is by the altar.” Then Solomon sent Benaiah the son of Jehoiada, saying, “Go, fall on him.”