1 Kings 2:22-24 And king Solomon answered and said to his mother, And 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.

AKJV⁽ⁱ⁾ ²² And king Solomon answered and said to his mother, And 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. ²³ Then king Solomon swore by the LORD, saying, God do so to me, and more also, if Adonijah have not spoken this word against his own life. ²⁴ Now therefore, as the LORD lives, which has established me, and set me on the throne of David my father, and who has made me an house, as he promised, Adonijah shall be put to death this day.