2 Chronicles 35:2
He set the priests in their offices, and encouraged them to the service of the house of Yahweh.
2 Chronicles 31:2
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, and to give thanks, and to praise in the gates of the camp of Yahweh.
Numbers 18:5-7
"You shall perform the duty of the sanctuary, and the duty of the altar; that there be wrath no more on the children of Israel.
1 Chronicles 22:19
Now set your heart and your soul to seek after Yahweh your God. Arise therefore, and build the sanctuary of Yahweh God, to bring the ark of the covenant of Yahweh, and the holy vessels of God, into the house that is to be built to the name of Yahweh."
1 Chronicles 24:1-31
These were the divisions of the sons of Aaron. The sons of Aaron: Nadab and Abihu, Eleazar and Ithamar.
2 Chronicles 23:8
So the Levites and all Judah did according to all that Jehoiada the priest commanded: and they took every man his men, those who were to come in on the Sabbath; with those who were to go out on the Sabbath; for Jehoiada the priest didn't dismiss the shift.
2 Chronicles 23:18
Jehoiada appointed the officers of the house of Yahweh under the hand of the priests the Levites, whom David had distributed in the house of Yahweh, to offer the burnt offerings of Yahweh, as it is written in the law of Moses, with rejoicing and with singing, according to the order of David.
2 Chronicles 29:5-11
and said to them, "Listen to me, you Levites! Now sanctify yourselves, and sanctify the house of Yahweh, the God of your fathers, and carry out the filthiness out of the holy place.
Ezra 6:18
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.