1 Chronicles 25:1

“Afterward you will come to the hill of God where the Philistine garrison is; and it shall be as soon as you have come there to the city, that you will meet a group of prophets coming down from the high place with harp, tambourine, flute, and a lyre before them, and they will be prophesying.

“So now bring me a musician.” And it came about, when the musician played, that the hand of Yahweh came upon him.

Now these are the singers, heads of fathers’ households of the Levites, who lived in the chambers of the temple free from other service; for they were over them in their work day and night.

Then David said to the chiefs of the Levites to appoint their relatives the singers, with instruments of music, harps, lyres, loud-sounding cymbals, to raise a sound of gladness.

So the Levites appointed Heman the son of Joel, and from his relatives, Asaph the son of Berechiah; and from the sons of Merari their relatives, Ethan the son of Kushaiah,

And with them were Heman and Jeduthun, and the rest who were chosen, who were designated by name, to give thanks to Yahweh, because His lovingkindness endures forever.

and all the Levitical singers, Asaph, Heman, Jeduthun, and their sons and relatives, clothed in fine linen, with cymbals, harps, and lyres, standing east of the altar, and with them 120 priests blowing trumpets

And according to the judgment of his father David, he caused the divisions of the priests to stand for their service, and the Levites for their responsibilities to praise and minister before the priests according to the daily rule, and the gatekeepers by their divisions at every gate; for David the man of God had so commanded.

And Jehoiada placed the assignments concerning the house of Yahweh in the hand of the Levitical priests, whom David had divided by lot to be over the house of Yahweh, to offer the burnt offerings of Yahweh, as it is written in the law of Moses—with gladness and singing according to the order of David.

And the men did the work faithfully with foremen over them to direct: Jahath and Obadiah, the Levites of the sons of Merari, Zechariah and Meshullam of the sons of the Kohathites, and the Levites, all who were skillful with musical instruments.

The singers, the sons of Asaph, were also at their stations according to the commandment of David, Asaph, Heman, and Jeduthun the king’s seer; and the gatekeepers at each gate did not have to turn aside from their service, because the Levites their brothers prepared for them.

So the builders laid the foundation of the temple of Yahweh. Then the priests stood in their apparel with trumpets, and the Levites, the sons of Asaph, with cymbals, to praise Yahweh according to the directions of King David of Israel.

And they kept their responsibility given by their God and the responsibility of cleansing, together with the singers and the gatekeepers, according to the commandment of David and his son Solomon.

From the outside to the inner gate were chambers for the singers in the inner court, one of which was at the side of the north gate, with its front toward the south, and one at the side of the south gate facing toward the north.

Number and Services of Musicians