These are the men David put in charge of the music in the house of the LORD after the ark rested there.
When the Levites were first ordained in the wilderness much of the work then appointed them lay in carrying and taking care of the tabernacle and the utensils of it, while they were in their march through the wilderness. In David's time their number was increased; and, though the greater part of them was dispersed all the nation over, to teach the people the good...
Commenting on 1 Chronicles 6:31-53
And his brother Asaph,.... That is, Heman's brother; so Asaph was, as he was a descendant from the same original ancestor Levi, yet in the line of Gershon; and as being of the same office, a precentor, or chief singer: who stood on his right hand; he was next to Heman; Heman stood in the middle, which was the most honourable (h), and Asaph on...
And these [are they] whom David set over the service of song in the house of the LORD, after that the ark had rest. (f) After it was brought to the place where the temple would be built and was no longer carried to and fro.