2 Chronicles 8:14

And in accord with the ordinance of David his father he appointed working groups of priests for their service, Levites for their responsibilities for praise and cultic service before the priests {according to the daily requirement}, and the gatekeepers in their working groups, gate by gate. For thus David the man of God had commanded.

1 Chronicles 9:17

And the gatekeepers [were] Shallum, Akkub, Talmon, Ahiman, and their brethren (Shallum [was] the chief);

Nehemiah 12:24

And the heads of the Levites: Hashabiah, Sherebiah, Jeshua son of Kadmiel, and their brothers opposite them, to praise and to give thanks by the command of David the man of God, section alongside section.

Nehemiah 12:36

and his brothers Shemaiah, Azarel, Milalai, Gilalai, Maai, Nethanel, Judah, and Hanani with the instruments of the songs of David the man of God; and Ezra the scribe [went] before them.

Deuteronomy 33:1

Now this [is] the blessing [with] which Moses, the man of God, blessed the {Israelites} {before} his death.

2 Samuel 23:2

"The spirit of Yahweh speaks through me, and his word [is] upon my tongue.

1 Kings 13:1

Suddenly a man of God from Judah came to Bethel, by the word of Yahweh, while Jeroboam [was] standing at the altar to offer incense.

1 Chronicles 6:31-48

Now these [are the men] whom David appointed for {control of singing} in the house of Yahweh where the ark rested.

1 Chronicles 15:16-22

Then David ordered the chiefs of the Levites to appoint their brothers [as] singers with instruments of song, musical instruments, stringed instruments, and cymbals, {raising their voices for joy}.

1 Chronicles 16:4-6

Then he appointed some of the Levites as ministers before the ark of Yahweh, to invoke, thank, and praise Yahweh the God of Israel.

1 Chronicles 16:42

And Heman and Jeduthun with them [had] trumpets and cymbals for making music, along with instruments for the song of God. And the sons of Jeduthun [were] at the gate.

1 Chronicles 23:1-19

Now David [was] old and full of days. And he made Solomon his son king over Israel.

1 Chronicles 28:19

"All this [I give you] in writing; from the hand of Yahweh he instructed me [about] all the workings of this plan."

2 Chronicles 5:11

And when the priests came out of the sanctuary (for all the priests who were present sanctified themselves without keeping their divisions)

2 Chronicles 23:4

This is the thing that you must do: one third of you priests and Levites {coming off duty on the Sabbath} [shall be] gatekeepers at the entrances

2 Chronicles 31:2

And Hezekiah appointed working groups of the priests and the Levites, each according to their divisions, {according to the service for priests and Levites}, for burnt offerings, for peace offerings, to serve, to give thanks, and to praise in the gates of the camps of Yahweh.

2 Chronicles 35:10

And when the work had been completed, the priests stood at their positions and the Levites in their working groups according to the command of the king.

Ezra 6:18

Then they set the priests in their divisions and the Levites in their sections for the work of God in Jerusalem, as it is written in the book of Moses.

Luke 1:5

It happened that in the days of Herod, king of Judea, [there was] a certain priest, Zechariah by name, of the division of Abijah. And {he had a wife} from the daughters of Aaron, and her name [was] Elizabeth.

Luke 1:8

And it happened that [while] he was serving as priest before God in the order of his division,

Acts 13:22

And [after] removing him, he raised up David for their king, about whom he also said, testifying, 'I have found David the [son] of Jesse [to be] a man in accordance with my heart, who will carry out all my will.'

Acts 13:36

For David, [after] serving the purpose of God in his own generation, fell asleep and {was buried with} his fathers, and experienced decay.

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 when the priests came out of the sanctuary (for all the priests who were present sanctified themselves without keeping their divisions)
2 Chronicles 23:4
This is the thing that you must do: one third of you priests and Levites {coming off duty on the Sabbath} [shall be] gatekeepers at the entrances
2 Chronicles 31:2
And Hezekiah appointed working groups of the priests and the Levites, each according to their divisions, {according to the service for priests and Levites}, for burnt offerings, for peace offerings, to serve, to give thanks, and to praise in the gates of the camps of Yahweh.
1 Chronicles 24:1
And as for the sons of Aaron, [these were] their divisions. The sons of Aaron [were] Nadab and Abihu, Eleazar and Ithamar.
Luke 1:5
It happened that in the days of Herod, king of Judea, [there was] a certain priest, Zechariah by name, of the division of Abijah. And {he had a wife} from the daughters of Aaron, and her name [was] Elizabeth.

The levites

2 Chronicles 35:10
And when the work had been completed, the priests stood at their positions and the Levites in their working groups according to the command of the king.
1 Chronicles 6:31
Now these [are the men] whom David appointed for {control of singing} in the house of Yahweh where the ark rested.
1 Chronicles 15:16
Then David ordered the chiefs of the Levites to appoint their brothers [as] singers with instruments of song, musical instruments, stringed instruments, and cymbals, {raising their voices for joy}.
1 Chronicles 16:4
Then he appointed some of the Levites as ministers before the ark of Yahweh, to invoke, thank, and praise Yahweh the God of Israel.
1 Chronicles 24:20
And as for the remainder of the sons of Levi: of the sons of Amram, Shubael; of the sons of Shubael, Jehdeiah.
Ezra 6:18
Then they set the priests in their divisions and the Levites in their sections for the work of God in Jerusalem, as it is written in the book of Moses.

The porters

1 Chronicles 9:17
And the gatekeepers [were] Shallum, Akkub, Talmon, Ahiman, and their brethren (Shallum [was] the chief);
1 Chronicles 26:1
As for the working groups of the gatekeepers: of the Korahites, Meshelemiah the son of Kore, from the sons of Asaph.

So had david the man of god commanded

Deuteronomy 33:1
Now this [is] the blessing [with] which Moses, the man of God, blessed the {Israelites} {before} his death.
2 Samuel 23:2
"The spirit of Yahweh speaks through me, and his word [is] upon my tongue.
1 Kings 13:1
Suddenly a man of God from Judah came to Bethel, by the word of Yahweh, while Jeroboam [was] standing at the altar to offer incense.
1 Chronicles 28:19
"All this [I give you] in writing; from the hand of Yahweh he instructed me [about] all the workings of this plan."
Acts 13:22
And [after] removing him, he raised up David for their king, about whom he also said, testifying, 'I have found David the [son] of Jesse [to be] a man in accordance with my heart, who will carry out all my will.'