1 Kings 2:23-25

New International Version - UK

²³ Then King Solomon swore by the Lord: ‘May God deal with me, be it ever so severely, if Adonijah does not pay with his life for this request! ²⁴ And now, as surely as the Lord lives – he who has established me securely on the throne of my father David and has founded a dynasty for me as he promised – Adonijah shall be put to death today!’ ²⁵ So King Solomon gave orders to Benaiah son of Jehoiada, and he struck down Adonijah and he died.