1 Chronicles 16:37
So he made Asaph and his brothers keep their places there before the ark of the agreement of the Lord, to do whatever had to be done before the ark at all times day by day:
2 Chronicles 8:14
And he gave the divisions of the priests their places for their work, as ordered by his father David, and to the Levites he gave their work of praise and waiting on the priests, to do what was needed day by day; and he gave the door-keepers their places in turn at every door; for so David, the man of God, had given orders.
Ezra 3:4
And they kept the feast of tents, as it is recorded, making the regular burned offerings every day by number, as it is ordered; for every day what was needed.
1 Chronicles 15:17-24
So Heman, the son of Joel, and, of his brothers, Asaph, the son of Berechiah; and of the sons of Merari their brothers, Ethan, the son of Kushaiah, were put in position by the Levites;
1 Chronicles 16:4-6
And he put some of the Levites before the ark of the Lord as servants, to keep the acts of the Lord in memory, and to give worship and praise to the Lord, the God of Israel:
1 Chronicles 25:1-6
Further, David and the chiefs of the servants of the holy place made selection of certain of the sons of Asaph and of Heman and of Jeduthun for the work of prophets, to make melody with corded instruments and brass; and the number of the men for the work they had to do was: