1 Kings 2:20

16Now I ask one petition of you. Don’t deny me.” She said to him, “Say on.”

17He said, “Please speak to Solomon the king (for he will not tell you ‘no’), that he give me Abishag the Shunammite as wife.”

18Bathsheba said, “All right. I will speak for you to the king.”

19Bathsheba therefore went to King Solomon, to speak to him for Adonijah. The king rose up to meet her and bowed himself to her, and sat down on his throne and caused a throne to be set for the king’s mother; and she sat on his right hand.

20Then she said, “I ask one small petition of you; don’t deny me.” The king said to her, “Ask on, my mother, for I will not deny you.”

21She said, “Let Abishag the Shunammite be given to Adonijah your brother as wife.”

22King Solomon answered his mother, “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.”

23Then King Solomon swore by the LORD, saying, “God do so to me, and more also, if Adonijah has not spoken this word against his own life.

24Now therefore as the LORD lives, who has established me and set me on my father David’s throne, and who has made me a house as he promised, surely Adonijah shall be put to death today.”