1 Kings 1:33-35

33The king also said to them, Take with you the servants of your lord, and cause Solomon my son to ride upon my own mule, and bring him down to Gihon:1 34And let Zadok the priest and Nathan the prophet anoint him there king over Israel: and blow ye with the trumpet, and say, God save king Solomon. 35Then ye shall come up after him, that he may come and sit upon my throne; for he shall be king in my stead: and I have appointed him to be ruler over Israel and over Judah.