Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[351] Now, as Bathsheba was speaking, the keeper of the king's chambers told him that Nathan desired to see him. And when the king had commanded that he should be admitted, he came in, and asked him whether he had ordained Adonijah to be king, and delivered the government to him, or not; for that he had made a splendid supper, and invited all his sons, except Solomon; as also that he had invited Joab, the captain of his host, [and Abiathar the high priest,] who are feasting with applauses, and many joyful sounds of instruments, and wish that his kingdom may last for ever; but he hath not invited me, nor Zadok the high priest, nor Benaiah the captain of the guards; and it is but fit that all should know whether this be done by thy approbation or not. When Nathan had said thus, the king commanded that they should call Bathsheba to him, for she had gone out of the room when the prophet came. And when Bathsheba was come, David said, "I swear by Almighty God, that thy son Solomon shall certainly he king, as I formerly swore; and that he shall sit upon my throne, and that this very day also." So Bathsheba worshipped him, and wished him a long life; and the king sent for Zadok the high priest, and Benaiah the captain of the guards; and when they were come, he ordered them to take with them Nathan the prophet, and all the armed men about the palace, and to set his son Solomon upon the king's mule, and to carry him out of the city to the fountain called Gihon, and to anoint him there with the holy oil, and to make him king. This he charged Zadok the high priest, and Nathan the prophet, to do, and commanded them to follow Solomon through the midst of the city, and to sound the trumpets, and wish aloud that Solomon the king may sit upon the royal throne for ever, that so all the people may know that he is ordained king by his father. He also gave Solomon a charge concerning his government, to rule the whole nation of the Hebrews, and particularly the tribe of Judah, religiously and righteously. And when Benaiah had prayed to God to be favorable to Solomon, without any delay they set Solomon upon the mule, and brought him out of the city to the fountain, and anointed him with oil, and brought him into the city again, with acclamations and wishes that his kingdom might continue a long time: and when they had introduced him into the king's house, they set him upon the throne; whereupon all the people betook themselves to make merry, and to celebrate a festival, dancing and delighting themselves with musical pipes, till both the earth and the air echoed with the multitude of the instruments of music.