Treasury of Scripture Knowledge

Summary

So he left there before the ark of the covenant of the LORD Asaph and his brethren, to minister before the ark continually, as every day's work required:

Bible References

Before the ark

1 Chronicles 16:4
And he placed before the ark of Yahweh certain of the Levites, as attendants, - and to celebrate, and to give thanks and render praise, unto Yahweh, God of Israel;
1 Chronicles 15:17
So the Levites caused to stand, Heman son of Joel, and, of his brethren, Asaph, son of Berechiah, - and, of the sons of Merari their brethren, Ethan, son of Kushaiah;
1 Chronicles 25:1
And David and the captains of the host set apart for service, unto the sons of Asaph and Heman and Jeduthun, such as should prophesy, with lyres, with harps, and with cymbals, - and, the number of the workers, for their service, was:

As every

2 Chronicles 8:14
and he caused to stand, according to the regulation of David his father, the courses of the priests over their service and of the Levites over their charges, to offer praise and to minister before the priests, for the duty of each day upon its own day, and the gate-keepers in their courses, at every several gate, - for, such, was the commandment of David the man of God;
Ezra 3:4
And they kept the festival of booths, as it was written, - and the ascending-offering of each day upon its own day, by number, according to regulation, the matter of a day upon its day;