1 Chronicles 23:12-13
The sons of Kohath: Amram, Izhar, Hebron, and Uzziel—four in all. / The sons of Amram: Aaron and Moses. Aaron and his descendants were set apart forever to consecrate the most holy things, to burn incense before the LORD, to minister before Him, and to pronounce blessings in His name forever.

1 Chronicles 24:1-5
These were the divisions of the descendants of Aaron. The sons of Aaron were Nadab, Abihu, Eleazar, and Ithamar. / But Nadab and Abihu died before their father did, and they had no sons; so Eleazar and Ithamar served as priests. / With the help of Eleazar’s descendant Zadok and Ithamar’s descendant Ahimelech, David divided them according to the offices of their service. ...

1 Chronicles 25:1-7
Additionally, David and the commanders of the army set apart some of the sons of Asaph, Heman, and Jeduthun to prophesy with the accompaniment of lyres, harps, and cymbals. The following is the list of the men who performed this service: / From the sons of Asaph: Zaccur, Joseph, Nethaniah, and Asarelah. These sons of Asaph were under the direction of Asaph, who prophesied under the direction of the king. / From the sons of Jeduthun: Gedaliah, Zeri, Jeshaiah, Shimei, Hashabiah, and Mattithiah—six in all—under the direction of their father Jeduthun, who prophesied with the harp, giving thanks and praise to the LORD. ...

1 Chronicles 26:1-19
These were the divisions of the gatekeepers: From the Korahites: Meshelemiah son of Kore, one of the sons of Asaph. / Meshelemiah had sons: Zechariah the firstborn, Jediael the second, Zebadiah the third, Jathniel the fourth, / Elam the fifth, Jehohanan the sixth, and Eliehoenai the seventh. ...

1 Chronicles 6:31-32
These are the men David put in charge of the music in the house of the LORD after the ark rested there. / They ministered with song before the tabernacle, the Tent of Meeting, until Solomon built the house of the LORD in Jerusalem. And they performed their duties according to the regulations given them.

1 Chronicles 9:10-13
From the priests: Jedaiah, Jehoiarib, and Jachin; / Azariah son of Hilkiah, the son of Meshullam, the son of Zadok, the son of Meraioth, the son of Ahitub, the chief official of God’s temple; / Adaiah son of Jeroham, the son of Pashhur, the son of Malchijah; Maasai son of Adiel, the son of Jahzerah, the son of Meshullam, the son of Meshillemith, the son of Immer; ...

1 Chronicles 15:4-10
Then he gathered together the descendants of Aaron and the Levites: / From the Kohathites, Uriel the chief and 120 of his relatives; / from the Merarites, Asaiah the chief and 220 of his relatives; ...

1 Chronicles 16:4-6
David appointed some of the Levites to minister before the ark of the LORD, to celebrate, to give thanks, and to praise the LORD, the God of Israel. / Asaph was the chief, Zechariah was second, then Jeiel, Shemiramoth, Jehiel, Mattithiah, Eliab, Benaiah, Obed-edom, and Jeiel. They were to play the harps and lyres, while Asaph sounded the cymbals / and the priests Benaiah and Jahaziel blew the trumpets regularly before the ark of the covenant of God.

1 Chronicles 16:37-42
So David left Asaph and his associates there before the ark of the covenant of the LORD, to minister there regularly according to the daily requirements, / along with Obed-edom and his sixty-eight relatives. Obed-edom son of Jeduthun, and also Hosah, were to be gatekeepers. / And David left Zadok the priest and his fellow priests before the tabernacle of the LORD at the high place in Gibeon ...

1 Chronicles 23:28-32
but their duty was to assist the descendants of Aaron with the service of the house of the LORD, being responsible for the courts and chambers, the purification of all the holy things, and the work of the service of the house of God, / as well as for the rows of the showbread, the fine flour for the grain offering, the wafers of unleavened bread, the baking, the mixing, and all measurements of quantity and size. / They were also to stand every morning to give thanks and praise to the LORD, and likewise in the evening. ...

1 Chronicles 28:13
for the divisions of the priests and Levites, for all the work of service in the house of the LORD, and for all the articles of service in the house of the LORD:

1 Chronicles 28:21
The divisions of the priests and Levites are ready for all the service of the house of God, and every willing man of every skill will be at your disposal for the work. The officials and all the people are fully at your command.”

2 Chronicles 5:12-14
all the Levitical singers—Asaph, Heman, Jeduthun, and their sons and relatives—stood on the east side of the altar, dressed in fine linen and playing cymbals, harps, and lyres, accompanied by 120 priests sounding trumpets. / The trumpeters and singers joined together to praise and thank the LORD with one voice. They lifted up their voices, accompanied by trumpets, cymbals, and musical instruments, in praise to the LORD: “For He is good; His loving devotion endures forever.” And the temple, the house of the LORD, was filled with a cloud / so that the priests could not stand there to minister because of the cloud. For the glory of the LORD filled the house of God.

2 Chronicles 8:14
In keeping with the ordinances of his father David, Solomon appointed the divisions of the priests over their service, and the Levites for their duties to offer praise and to minister before the priests according to the daily requirement. He also appointed gatekeepers by their divisions at each gate, for this had been the command of David, the man of God.

2 Chronicles 31:2
Hezekiah reestablished the divisions of the priests and Levites—each of them according to their duties as priests or Levites—for the burnt offerings and peace offerings, for ministry, for giving thanks, and for singing praises at the gates of the LORD’s dwelling.