Zadok, Nathan, and Benaiah left and took along the two groups of David's special bodyguards. Solomon rode on David's mule as they led him to Gihon Spring.
David divided Aaron's descendants into groups, according to their assigned work. Zadok, one of Eleazar's descendants, and Ahimelech, one of Ithamar's descendants, helped David.
The people were very happy, and they ate and drank there at the LORD's altar. That same day, Solomon was crowned king. The people celebrated and poured olive oil on Solomon's head to show that he would be their next king. They also poured oil on Zadok's head to show that he was their priest.
and the building beside the south gate belongs to those who serve at the altar. All of them are descendants of Zadok and are the only Levites allowed to serve as the LORD's priests.”
the priests of the Levi tribe from the family of Zadok the priest are the only ones who may serve in my temple—this is my law. So give them a young bull to slaughter as a sacrifice for sin.
I have chosen someone else to be my priest, someone who will be faithful and obey me. I will always let his family serve as priests and help my chosen king.