15:21 And Mattithiah, and Elipheleh, and Mikneiah, and Obededom, and Jeiel, and Azaziah, with harps on the {k} Sheminith to excel.
(k) Which was the eighth tune, over which he that was most excellent had charge.
15:21 To excel - Which word may be added to note the excellency of that instrument, or part of musick; or that there was a greater extension or elevation of the voice than in the former. This way of praising God by musical instruments, had not hitherto been in use. But David instituted it by divine direction, and added it to the other ordinances of that dispensation.
15:1-24 Wise and good men may be guilty of oversights, which they will correct, as soon as they are aware of them. David does not try to justify what had been done amiss, nor to lay the blame on others; but he owns himself guilty, with others, of not seeking God in due order
