1 Kings 2:15

Thou knowest that the kingdom was mine - It certainly was his by the right of primogeniture, and it was his by the voice of the people, and the consent of the high priest. But there was a right paramount to all these, the right of God; it was his kingdom; the kings were his lieutenants, and he had a right to give the crown to whomsoever he pleased, and he was pleased to give it to Solomon.