1 Kings 2:22-24

Amplified Bible, Classic Edition

²² King Solomon answered his mother, And why do you ask Abishag the Shunammite for Adonijah? Ask for him the kingdom also—for he is my elder brother—[ask it] even for him and for [his supporters] Abiathar the priest and Joab son of Zeruiah.

²³ Then King Solomon swore by the Lord, saying, May God do so to me, and more also, if Adonijah has not requested this against his own life.

²⁴ Therefore, as the Lord lives, Who has established me and set me on the throne of David my father and Who has made me a house as He promised, Adonijah shall be put to death this day.