1 Chronicles 23:6

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

1 Chronicles 6:1

The sons of Levi: Gershon, Kohath, and Merari.

2 Chronicles 8:14

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 so had David the man of God commanded.

1 Chronicles 6:16

The sons of Levi: Gershom, Kohath, and Merari.

2 Chronicles 29:25

He set the Levites in the house of the LORD with cymbals, with stringed instruments, and with harps, according to the commandment of David, and of Gad the king's seer, and Nathan the prophet; for the commandment was of the LORD by his prophets.

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.

Exodus 6:16-24

These are the names of the sons of Levi according to their generations: Gershon, and Kohath, and Merari; and the years of the life of Levi were one hundred thirty-seven years.

Numbers 26:57-58

These are those who were numbered of the Levites after their families: of Gershon, the family of the Gershonites; of Kohath, the family of the Kohathites; of Merari, the family of the Merarites.

1 Chronicles 24:1

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

1 Chronicles 26:1

For the divisions of the doorkeepers: of the Korahites, Meshelemiah the son of Kore, of the sons of Asaph.

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 the LORD.

2 Chronicles 35:10

So the service was prepared, and the priests stood in their place, and the Levites by their divisions, according to the king's commandment.

Treasury of Scripture Knowledge

Summary

And David divided them into courses among the sons of Levi, namely, Gershon, Kohath, and Merari.

Bible References

Divided

2 Chronicles 8:14
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 so had David the man of God commanded.
2 Chronicles 29:25
He set the Levites in the house of the LORD with cymbals, with stringed instruments, and with harps, according to the commandment of David, and of Gad the king's seer, and Nathan the prophet; for the commandment was of the LORD by his prophets.
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 the LORD.
2 Chronicles 35:10
So the service was prepared, and the priests stood in their place, and the Levites by their divisions, according to the king's commandment.
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.

Courses

1 Chronicles 24:1
These were the divisions of the sons of Aaron. The sons of Aaron: Nadab and Abihu, Eleazar and Ithamar.
1 Chronicles 26:1
For the divisions of the doorkeepers: of the Korahites, Meshelemiah the son of Kore, of the sons of Asaph.

Gershon

1 Chronicles 6:1
The sons of Levi: Gershon, Kohath, and Merari.
Numbers 26:57
These are those who were numbered of the Levites after their families: of Gershon, the family of the Gershonites; of Kohath, the family of the Kohathites; of Merari, the family of the Merarites.