2 Chronicles 31:2

And Hezekiah appointed the courses of the priests and the Levites after their courses, each man according to his service, the priests and Levites for burnt offerings and for peace offerings, to minister and to give thanks and to praise in the gates of the tents of the LORD.

1 Chronicles 24:1

The sons of Aaron also had their courses. The sons of Aaron: Nadab, Abihu, Eleazar, and Ithamar.

1 Chronicles 16:4-6

And he appointed certain of the Levites to minister before the ark of the LORD and to record and to thank and praise the LORD God of Israel:

1 Chronicles 16:37

So he left there before the ark of the covenant of the LORD Asaph and his brethren to minister before the ark continually, each thing in its day;

1 Chronicles 16:40-41

to offer burnt offerings unto the LORD upon the altar of the burnt offering continually morning and evening, according to all that is written in the law of the LORD, which he commanded Israel;

1 Chronicles 23:1-26

So when David was old and full of days, he made Solomon, his son, king over Israel.

1 Chronicles 23:28-31

And their station was at the hand of the sons of Aaron for the service of the house of the LORD, in the courts, and in the chambers, and in the purifying of all holy things, and in the work of the ministry of the house of God,

1 Chronicles 25:1-3

Moreover David and the captains of the host separated unto the ministry the sons of Asaph and of Heman and of Jeduthun, who should prophesy with harps, with psalteries, and with cymbals; and the number of men that were suitable for the work of their respective ministry was,

2 Chronicles 5:11

And when the priests came out of the sanctuary (for all the priests that were present were sanctified and did not then wait by course,

2 Chronicles 8:14

And he appointed, according to the order of David his father, the courses of the priests to their service and the Levites to their charges, to praise and minister before the priests, each thing in its day; the porters also by their courses at each gate, for so had David, the man of God, commanded.

2 Chronicles 23:8

So the Levites and all Judah did according to all the things that Jehoiada, the priest, had commanded, and each one took his men, those that were to come in on the sabbath with those that were to go out on the sabbath, for Jehoiada the priest did not dismiss the courses.

2 Chronicles 29:24-26

and the priests killed them, and they removed the sin with their blood upon the altar, to reconcile all Israel, for the king commanded that the burnt offering and the atonement for sin should be offered for all Israel.

Ezra 6:18

And they set the priests in their divisions and the Levites in their courses over the work of God, which is at Jerusalem, as it is written in the book of Moses.

Nehemiah 11:17

And Mattaniah, the son of Micha, the son of Zabdi, the son of Asaph, was the principal to begin the thanksgiving in prayer; and Bakbukiah, the second among his brethren, and Abda, the son of Shammua, the son of Galal, the son of Jeduthun.

Psalm 134:1-3

Behold, bless ye the LORD, all ye slaves of the LORD, who by night stand in the house of the LORD.

Jeremiah 33:11

the voice of joy, and the voice of gladness, the voice of the bridegroom, and the voice of the bride, the voice of those that shall say, Praise the LORD of the hosts; for the LORD is good; for his mercy endures for ever: and of those that shall bring the sacrifice of praise into the house of the LORD. For I will cause the captivity of the land to turn as at the first, said the LORD.

Luke 1:5

There was in the days of Herod, the king of Judaea, a certain priest named Zacharias, of the course of Abia, and his wife was of the daughters of Aaron, and her name was Elisabeth.

Treasury of Scripture Knowledge

Summary

And Hezekiah appointed the courses of the priests and the Levites after their courses, every man according to his service, the priests and Levites for burnt offerings and for peace offerings, to minister, and to give thanks, and to praise in the gates of the tents of the LORD.

Bible References

The courses

2 Chronicles 5:11
And when the priests came out of the sanctuary (for all the priests that were present were sanctified and did not then wait by course,
2 Chronicles 8:14
And he appointed, according to the order of David his father, the courses of the priests to their service and the Levites to their charges, to praise and minister before the priests, each thing in its day; the porters also by their courses at each gate, for so had David, the man of God, commanded.
2 Chronicles 23:8
So the Levites and all Judah did according to all the things that Jehoiada, the priest, had commanded, and each one took his men, those that were to come in on the sabbath with those that were to go out on the sabbath, for Jehoiada the priest did not dismiss the courses.
1 Chronicles 16:37
So he left there before the ark of the covenant of the LORD Asaph and his brethren to minister before the ark continually, each thing in its day;
Ezra 6:18
And they set the priests in their divisions and the Levites in their courses over the work of God, which is at Jerusalem, as it is written in the book of Moses.
Luke 1:5
There was in the days of Herod, the king of Judaea, a certain priest named Zacharias, of the course of Abia, and his wife was of the daughters of Aaron, and her name was Elisabeth.

To give thanks

2 Chronicles 29:24
and the priests killed them, and they removed the sin with their blood upon the altar, to reconcile all Israel, for the king commanded that the burnt offering and the atonement for sin should be offered for all Israel.
1 Chronicles 16:4
And he appointed certain of the Levites to minister before the ark of the LORD and to record and to thank and praise the LORD God of Israel:
1 Chronicles 23:30
and to stand every morning to thank and praise the LORD, and likewise in the evening;
1 Chronicles 25:1
Moreover David and the captains of the host separated unto the ministry the sons of Asaph and of Heman and of Jeduthun, who should prophesy with harps, with psalteries, and with cymbals; and the number of men that were suitable for the work of their respective ministry was,
Nehemiah 11:17
And Mattaniah, the son of Micha, the son of Zabdi, the son of Asaph, was the principal to begin the thanksgiving in prayer; and Bakbukiah, the second among his brethren, and Abda, the son of Shammua, the son of Galal, the son of Jeduthun.
Psalm 135:1
Halelu-JAH. Praise ye the name of the LORD; praise him, O ye slaves of the LORD.
Jeremiah 33:11
the voice of joy, and the voice of gladness, the voice of the bridegroom, and the voice of the bride, the voice of those that shall say, Praise the LORD of the hosts; for the LORD is good; for his mercy endures for ever: and of those that shall bring the sacrifice of praise into the house of the LORD. For I will cause the captivity of the land to turn as at the first, said the LORD.