1 Kings 2:15

2:15 He said, “You know that the kingdom was mine and all Israel considered me king. But then the kingdom was given to my brother, for the Lord decided it should be his.

1 Kings 2:22-24

2:22 King Solomon answered his mother, “Why just request Abishag the Shunammite for him? Since he is my older brother, you should also request the kingdom for him, for Abiathar the priest, and for Joab son of Zeruiah!”

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!”