2 Chronicles 8:14

And he appointed, according to the order of David his father, the divisions of the priests to their service, and the Levites to their charges, to praise and serve before the priests, as the duty of every day required: the gatekeepers also by their divisions at every gate: for so had David the man of God commanded.

1 Chronicles 9:17

And the gatekeepers were, Shallum, and Akkub, and Talmon, and Ahiman, and their brethren: Shallum was the chief;

Nehemiah 12:24

And the heads of the Levites: Hashabiah, Sherebiah, and Jeshua the son of Kadmiel, with their brethren opposite them, to praise and to give thanks, according to the commandment of David the man of God, watch corresponding with watch.

Nehemiah 12:36

And his brethren, Shemaiah, and Azarel, Milalai, Gilalai, Maai, Nethanel, and Judah, Hanani, with the musical instruments of David the man of God, and Ezra the scribe went before them.

Deuteronomy 33:1

And this is the blessing, with which Moses the man of God blessed the children of Israel before his death.

2 Samuel 23:2

The Spirit of the LORD spoke by me, and his word was in my tongue.

1 Kings 13:1

And, behold, there came a man of God out of Judah by the word of the LORD unto Beth-el: and Jeroboam stood by the altar to burn incense.

1 Chronicles 6:31-48

And these are they whom David set over the service of song in the house of the LORD, after the ark had rest.

1 Chronicles 15:16-22

And David spoke to the chiefs of the Levites to appoint their brethren to be the singers with instruments of music, lyres and harps and cymbals sounding, by lifting up the voice with joy.

1 Chronicles 16:4-6

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

1 Chronicles 16:42

And with them Heman and Jeduthun with trumpets and cymbals for those that should sound aloud, and with musical instruments of God. And the sons of Jeduthun were gatekeepers.

1 Chronicles 23:1-19

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

1 Chronicles 28:19

All this, said David, the LORD made me understand in writing by his hand upon me, even all the works of this plan.

2 Chronicles 5:11

And it came to pass, when the priests were come out of the holy place: (for all the priests that were present were sanctified, without regard to their divisions.

2 Chronicles 23:4

This is the thing that you shall do; A third part of you entering on the sabbath, of the priests and of the Levites, shall be gatekeepers of the doors;

2 Chronicles 31:2

And Hezekiah appointed the divisions of the priests and the Levites according to their divisions, 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 camp of the LORD.

2 Chronicles 35:10

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

Ezra 6:18

And they set the priests in their divisions, and the Levites in their divisions, for the service 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 Judea, a certain priest named Zachariah, of the course of Abia: and his wife was of the daughters of Aaron, and her name was Elizabeth.

Luke 1:8

And it came to pass, that while he executed the priest's office before God in the order of his course,

Acts 13:22

And when he had removed him, he raised up unto them David to be their king; to whom also he gave testimony, and said, I have found David the son of Jesse, a man after my own heart, who shall fulfill all my will.

Acts 13:36

For David, after he had served his own generation by the will of God, fell asleep, and was laid with his fathers, and saw corruption:

Treasury of Scripture Knowledge

Summary

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, as the duty of every day required: the porters also by their courses at every gate: for so had David the man of God commanded.

Bible References

The courses

2 Chronicles 5:11
And it came to pass, when the priests were come out of the holy place: (for all the priests that were present were sanctified, without regard to their divisions.
2 Chronicles 23:4
This is the thing that you shall do; A third part of you entering on the sabbath, of the priests and of the Levites, shall be gatekeepers of the doors;
2 Chronicles 31:2
And Hezekiah appointed the divisions of the priests and the Levites according to their divisions, 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 camp of the LORD.
1 Chronicles 24:1
Now these are the divisions of the sons of Aaron. The sons of Aaron; Nadab, and Abihu, Eleazar, and Ithamar.
Luke 1:5
There was in the days of Herod, the king of Judea, a certain priest named Zachariah, of the course of Abia: and his wife was of the daughters of Aaron, and her name was Elizabeth.

The levites

2 Chronicles 35:10
So the service was prepared, and the priests stood in their places, and the Levites in their divisions, according to the king's commandment.
1 Chronicles 6:31
And these are they whom David set over the service of song in the house of the LORD, after the ark had rest.
1 Chronicles 15:16
And David spoke to the chiefs of the Levites to appoint their brethren to be the singers with instruments of music, lyres and harps and cymbals sounding, by lifting up the voice with joy.
1 Chronicles 16:4
And he appointed certain of the Levites to minister before the ark of the LORD, and to invoke, and to thank and praise the LORD God of Israel:
1 Chronicles 24:20
And the rest of the sons of Levi were these: Of the sons of Amram; Shubael: of the sons of Shubael; Jehdeiah.
Ezra 6:18
And they set the priests in their divisions, and the Levites in their divisions, for the service of God, which is at Jerusalem; as it is written in the book of Moses.

The porters

1 Chronicles 9:17
And the gatekeepers were, Shallum, and Akkub, and Talmon, and Ahiman, and their brethren: Shallum was the chief;
1 Chronicles 26:1
Concerning the divisions of the gatekeepers: Of the Korahites was Meshelemiah the son of Kore, of the sons of Asaph.

So had david the man of god commanded

Deuteronomy 33:1
And this is the blessing, with which Moses the man of God blessed the children of Israel before his death.
2 Samuel 23:2
The Spirit of the LORD spoke by me, and his word was in my tongue.
1 Kings 13:1
And, behold, there came a man of God out of Judah by the word of the LORD unto Beth-el: and Jeroboam stood by the altar to burn incense.
1 Chronicles 28:19
All this, said David, the LORD made me understand in writing by his hand upon me, even all the works of this plan.
Acts 13:22
And when he had removed him, he raised up unto them David to be their king; to whom also he gave testimony, and said, I have found David the son of Jesse, a man after my own heart, who shall fulfill all my will.