1 Kings 2:23-25

2:23 King Solomon then swore an oath by the Lord, “May God judge me severely, if Adonijah does not pay for this request with his life! 2:24 Now, as certainly as the Lord lives (he who made me secure, allowed me to sit on my father David’s throne, and established a dynasty for me as he promised), Adonijah will be executed today!” 2:25 King Solomon then sent Benaiah son of Jehoiada, and he killed Adonijah.