2 Chronicles 23:8

He commanded them, saying, “This is what you must do: a third of you, who come in on the Sabbath, shall be keepers of the watch of the king’s house;

Now while he executed the priest’s office before God in the order of his division

The captains over hundreds did according to all that Jehoiada the priest commanded; and they each took his men, those who were to come in on the Sabbath, with those who were to go out on the Sabbath, and came to Jehoiada the priest.

Their brothers, in their villages, were to come in every seven days from time to time to be with them:

These were the divisions of the sons of Aaron. The sons of Aaron: Nadab, Abihu, Eleazar, and Ithamar.

Now when the wall was built, and I had set up the doors, and the gatekeepers and the singers and the Levites were appointed,

When the days of his service were fulfilled, he departed to his house.

“ ‘When you offer a sacrifice of peace offerings to Yahweh, you shall offer it so that you may be accepted.

The duty of the sons of Gershon in the Tent of Meeting shall be the tabernacle, the tent, its covering, the screen for the door of the Tent of Meeting,

After that, the Levites went in to do their service in the Tent of Meeting before Aaron and before his sons: as Yahweh had commanded Moses concerning the Levites, so they did to them.

In the seventh year Jehoiada sent and fetched the captains over hundreds of the Carites and of the guard, and brought them to him into Yahweh’s house; and he made a covenant with them, and made a covenant with them in Yahweh’s house, and showed them the king’s son.

The two companies of you, even all who go out on the Sabbath, shall keep the watch of Yahweh’s house around the king.

Jehoash said to the priests, “All the money of the holy things that is brought into Yahweh’s house, in current money, the money of the people for whom each man is evaluated, and all the money that it comes into any man’s heart to bring into Yahweh’s house,

They ministered with song before the tabernacle of the Tent of Meeting, until Solomon had built Yahweh’s house in Jerusalem. They performed the duties of their office according to their order.

Shallum the son of Kore, the son of Ebiasaph, the son of Korah, and his brothers, of his father’s house, the Korahites, were over the work of the service, keepers of the thresholds of the tent. Their fathers had been over Yahweh’s camp, keepers of the entry.

Jehoiada was the leader of the household of Aaron; and with him were three thousand seven hundred,

So he left Asaph and his brothers there before the ark of Yahweh’s covenant, to minister before the ark continually, as every day’s work required;

Now set your heart and your soul to follow Yahweh your God. Arise therefore, and build the sanctuary of Yahweh God, to bring the ark of Yahweh’s covenant and the holy vessels of God into the house that is to be built for Yahweh’s name.”

David divided them into divisions according to the sons of Levi: Gershon, Kohath, and Merari.

and to stand every morning to thank and praise Yahweh, and likewise in the evening;

This was their ordering in their service, to come into Yahweh’s house according to the ordinance given to them by Aaron their father, as Yahweh, the God of Israel, had commanded him.

Moreover, David and the captains of the army set apart for the service certain of the sons of Asaph, and of Heman, and of Jeduthun, who were to prophesy with harps, with stringed instruments, and with cymbals. The number of those who did the work according to their service was:

This Shelomoth and his brothers were over all the treasures of the dedicated things, which David the king, and the heads of the fathers’ households, the captains over thousands and hundreds, and the captains of the army, had dedicated.

When the priests had come out of the holy place (for all the priests who were present had sanctified themselves, and didn’t keep their divisions;

He appointed, according to the ordinance of David his father, the divisions of the priests to their service, and the Levites to their offices, to praise and to minister before the priests, as the duty of every day required; the doorkeepers also by their divisions at every gate, for David the man of God had so commanded.

This is the thing that you must do. A third part of you, who come in on the Sabbath, of the priests and of the Levites, shall be gatekeepers of the thresholds.

Jehoiada appointed the officers of Yahweh’s house under the hand of the Levitical priests, whom David had distributed in Yahweh’s house, to offer the burnt offerings of Yahweh, as it is written in the law of Moses, with rejoicing and with singing, as David had ordered.

Hezekiah appointed the divisions of the priests and the Levites after their divisions, every man according to his service, both the priests and the Levites, for burnt offerings and for peace offerings, to minister, to give thanks, and to praise in the gates of Yahweh’s camp.

and those who were listed by genealogy of the priests by their fathers’ houses, and the Levites from twenty years old and upward, in their offices by their divisions;

He set the priests in their offices, and encouraged them in the service of Yahweh’s house.

They set the priests in their divisions, and the Levites in their courses, for the service of God, which is at Jerusalem, as it is written in the book of Moses.

and Mattaniah the son of Mica, the son of Zabdi, the son of Asaph, who was the chief to begin the thanksgiving in prayer, and Bakbukiah, the second among his brothers; and Abda the son of Shammua, the son of Galal, the son of Jeduthun.

Serve Yahweh with gladness. Come before his presence with singing.

the voice of joy and the voice of gladness, the voice of the bridegroom and the voice of the bride, the voice of those who say, ‘Give thanks to Yahweh of Armies, for Yahweh is good, for his loving kindness endures forever;’ who bring thanksgiving into Yahweh’s house. For I will cause the captivity of the land to be reversed as at the first,” says Yahweh.

There was in the days of Herod, the king of Judea, a certain priest named Zacharias, of the priestly division of Abijah. He had a wife of the daughters of Aaron, and her name was Elizabeth.

Let all things be done decently and in order.

Now if perfection was through the Levitical priesthood (for under it the people have received the law), what further need was there for another priest to arise after the order of Melchizedek, and not be called after the order of Aaron?