15:23 Door - keepers - They were appointed to keep the door of the tent in which the ark was to be kept, that no unallowed person might press in and touch it; and in like manner they were to attend upon the ark in the way, and to guard it from the press and touch of prophane hands; for which end these two went before the ark, is their other two brethren mentioned in the close of ver.24, came after it.
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
