Kings III 2:21

21 And she said, Let, I pray thee, Abisag the Somanite be given to Adonias thy brother to wife.

Kings III 2:21 In-Context

19 And Bersabee went in to king Solomon to speak to him concerning Adonias; and the king rose up to meet her, and kissed her, and sat on the throne, and a throne was set for the mother of the king, and she sat on his right hand.
20 And she said to him, I ask of thee one little request; turn not away my face from thee. And the king said to her, Ask, my mother, and I will not reject thee.
21 And she said, Let, I pray thee, Abisag the Somanite be given to Adonias thy brother to wife.
22 And king Solomon answered and said to his mother, And why hast thou asked Abisag for Adonias? ask for him the kingdom also; for he my elder brother, and he has for his companion Abiathar the priest, and Joab the son of Saruia the commander-in-chief.
23 And king Solomon swore by the Lord, saying, God do so to me, and more also, that Adonias has spoken this word against his own life.

The Brenton translation of the Septuagint is in the public domain.