1 Kings 1:30-34

certainly as I vowed to you by the Lord, the God of Israel, saying, ‘Your son Solomon certainly shall be king after me, and he shall sit on my throne in my place’; I will indeed do so this day.”

Then Bathsheba bowed with her face to the ground, and prostrated herself before the king and said, “May my lord King David live forever.”

Then King David said, “Summon to me Zadok the priest, Nathan the prophet, and Benaiah the son of Jehoiada.” And they came into the king’s presence.

And the king said to them, “Take with you the servants of your lord, and have my son Solomon ride on my own mule, and bring him down to Gihon.

And have Zadok the priest and Nathan the prophet anoint him there as king over Israel, and blow the trumpet and say, ‘Long live King Solomon!’