1st Kings 2:20-23

²⁰And she said to him, I pray of thee one little asking; shame thou not my face. And the king said to her, My mother, ask thou; for it is not leaveful that I turn away thy face (or for it would not be right for me to refuse thee).

²¹And she said, (Let) Abishag of Shunem be given (for a) wife to Adonijah, thy brother.

²²And king Solomon answered, and said to his mother, Why askest thou (only for) Abishag of Shunem to Adonijah? Ask thou to him also the realm, (or Why askest thou only for Abishag of Shunem for Adonijah? Why not ask thou also for the kingdom for him?); certainly he is mine elder brother, and he hath Abiathar, (the) priest, and Joab, the son of Zeruiah.

²³Therefore king Solomon swore by the Lord, and said, God do to me these things, and add these things too, for Adonijah hath spoken this word against his (own) life.