2 Chronicles 8:14

And he will set up according to the judgment of David his father the divisions of the priests for their service, and the Levites for their watches, to praise and to serve before the priests for the word of a day in its day; and the gate-keepers in their divisions, to gate and gate: for thus the command of David the man of God.

1 Chronicles 9:17

The gate-keepers, Shallum and Akkub, and Talmon, and Ahiman, and their brethren: Shallum the head;

Nehemiah 12:24

And the heads of the Levites: Hashabiah, Sherebiah, and Joshua son of Kadmiel, and their brethren over against them, to praise, to confess in the command of David the man of God watching over against watching.

Nehemiah 12:36

And his brethren, Shemaiah, and Azarael, Milalai, Gilalai, Maai, Nathaneel, and Judah, Hanani, with instruments of song of David the man of God, and Ezra the scribe before them.

Deuteronomy 33:1

And this the blessing which Moses the man of God praised the sons of Israel before his death.

2 Samuel 23:2

The spirit of Jehovah spake in me, and his word upon my tongue.

1 Kings 13:1

And behold a man of God came out of Judah in the word of Jehovah to the house of God; and Jeroboam stood by the altar to burn incense.

1 Chronicles 6:31-48

And these whom David set up over the hands of song of the house of Jehovah from the resting of the ark

1 Chronicles 15:16-22

And David will say to the chiefs of the Levites to cause their brethren to stand singing with every instrument of song, lyres and harps, and cymbals, causing to hear to lift up with the voice for joy.

1 Chronicles 16:4-6

And he will give before the ark of Jehovah from the Levites serving, and for keeping in remembrance, and to confess and to praise to Jehovah God of Israel.

1 Chronicles 16:42

And with them Heman and Jeduthun, with trumpets and cymbals to cause to hear, and instruments of song of God. And the sons of Jeduthun at the gate.

1 Chronicles 23:1-19

And David was old and full of days, and he will make Solomon his son king over Israel

1 Chronicles 28:19

All in writing from the hand of Jehovah upon me, causing to understand all the works of the pattern.

2 Chronicles 5:11

And it will be in the coming forth of the priests from the holy place, (for all the priests being found were consecrated not to watch to the divisions:

2 Chronicles 23:4

This the word which ye shall do; the third of you coming in the Sabbath to the priests and to the Levites, to the gates of the thresholds;

2 Chronicles 31:2

And Hezekiah will set up the divisions of the priests and the Levites for their divisions each according to the mouth of his service to the priests and to the Levites for the burnt-offering and for the peace, to serve and to confess and to praise, in the gates of the camp of Jehovah.

2 Chronicles 35:10

And the service will be prepared, and the priests will stand upon their standing, and the Levites upon their divisions according to the command of the king.

Ezra 6:18

And they set up the priests in their division, and the Levites in their classes, for the work of God which is in Jerusalem; according to the writing of the book of Moses.

Luke 1:5

There was in the days of Herod, king of Judea, a certain priest named Zacharias, of the daily order of Abia: and his wife the daughter of Aaron, and her name Elizabeth.

Luke 1:8

And it was in his being priest, in the arranging of the daily order before God,

Acts 13:22

And having removed him, he raised up to them David for king; to whom also having testified, he said, I found David of Jesse, a man according to my heart, who shall do all my desires.

Acts 13:36

For David, truly having served his own generation by the will of God, was set to sleep, and was added to 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 will be in the coming forth of the priests from the holy place, (for all the priests being found were consecrated not to watch to the divisions:
2 Chronicles 23:4
This the word which ye shall do; the third of you coming in the Sabbath to the priests and to the Levites, to the gates of the thresholds;
2 Chronicles 31:2
And Hezekiah will set up the divisions of the priests and the Levites for their divisions each according to the mouth of his service to the priests and to the Levites for the burnt-offering and for the peace, to serve and to confess and to praise, in the gates of the camp of Jehovah.
1 Chronicles 24:1
And to the sons of Aaron their divisions. The sons of Aaron: Nadab and Abihu, Eleazar and Ithamar.
Luke 1:5
There was in the days of Herod, king of Judea, a certain priest named Zacharias, of the daily order of Abia: and his wife the daughter of Aaron, and her name Elizabeth.

The levites

2 Chronicles 35:10
And the service will be prepared, and the priests will stand upon their standing, and the Levites upon their divisions according to the command of the king.
1 Chronicles 6:31
And these whom David set up over the hands of song of the house of Jehovah from the resting of the ark
1 Chronicles 15:16
And David will say to the chiefs of the Levites to cause their brethren to stand singing with every instrument of song, lyres and harps, and cymbals, causing to hear to lift up with the voice for joy.
1 Chronicles 16:4
And he will give before the ark of Jehovah from the Levites serving, and for keeping in remembrance, and to confess and to praise to Jehovah God of Israel.
1 Chronicles 24:20
And to the sons of Levi remaining: To the sons of Amram: Shubael: to the sons of Shubael, Jehdeiah.
Ezra 6:18
And they set up the priests in their division, and the Levites in their classes, for the work of God which is in Jerusalem; according to the writing of the book of Moses.

The porters

1 Chronicles 9:17
The gate-keepers, Shallum and Akkub, and Talmon, and Ahiman, and their brethren: Shallum the head;
1 Chronicles 26:1
For the divisions to the gates. To the Korahites, Meshelemiah, the son of Kora from the sons of Asaph.

So had david the man of god commanded

Deuteronomy 33:1
And this the blessing which Moses the man of God praised the sons of Israel before his death.
2 Samuel 23:2
The spirit of Jehovah spake in me, and his word upon my tongue.
1 Kings 13:1
And behold a man of God came out of Judah in the word of Jehovah to the house of God; and Jeroboam stood by the altar to burn incense.
1 Chronicles 28:19
All in writing from the hand of Jehovah upon me, causing to understand all the works of the pattern.
Acts 13:22
And having removed him, he raised up to them David for king; to whom also having testified, he said, I found David of Jesse, a man according to my heart, who shall do all my desires.