Ezekiel 43:19

and the chamber that faces north is for the priests who keep charge of the altar. These are the sons of Zadok, the only Levites who may approach the LORD to minister before Him.”

But the Levitical priests, who are descended from Zadok and who kept charge of My sanctuary when the Israelites went astray from Me, are to approach Me to minister before Me. They will stand before Me to offer Me fat and blood, declares the Lord GOD.

just as the LORD commanded him through Moses. This was to be a reminder to the Israelites that no outsider who is not a descendant of Aaron should approach to offer incense before the LORD, lest he become like Korah and his followers.

And the king appointed Benaiah son of Jehoiada in Joab’s place over the army, and he appointed Zadok the priest in Abiathar’s place.

Then he said to Korah and all his followers, “Tomorrow morning the LORD will reveal who belongs to Him and who is holy, and He will bring that person near to Himself. The one He chooses, He will bring near to Himself.

Unlike the other high priests, He does not need to offer daily sacrifices, first for His own sins and then for the sins of the people; He sacrificed for sin once for all when He offered up Himself.

you also, like living stones, are being built into a spiritual house to be a holy priesthood, offering spiritual sacrifices acceptable to God through Jesus Christ.

But you are a chosen people, a royal priesthood, a holy nation, a people for God’s own possession, to proclaim the virtues of Him who called you out of darkness into His marvelous light.

So Solomon banished Abiathar from the priesthood of the LORD and thus fulfilled the word that the LORD had spoken at Shiloh against the house of Eli.

But you will be called the priests of the LORD; they will speak of you as ministers of our God; you will feed on the wealth of nations, and you will boast in their riches.