1 Kings 2:17; 1 Kings 2:21-22
So he continued, "Please ask King Solomon--he will not refuse you--to give me Abishag the Shunammite as my wife."
So she said, "Let Abishag the Shunammite be given in marriage to your brother Adonijah."
King Solomon answered his mother, "Why do you request Abishag the Shunammite for Adonijah? You might as well request the kingdom for him--after all, he is my older brother--yes, for him and for Abiathar the priest and Joab son of Zeruiah!"