4. In following the ark, they must keep their distance, v. 4. They must none of them come within a thousand yards of the ark. (1.) They must thus express their awful and reverent regard to that token of God's presence, lest its familiarity with them should breed contempt. This charge to them not to come near was agreeable to that dispensation of darkness, bondage, and terror: but we now through Christ have access with boldness. (2.) Thus it was made to appear that the ark was able to protect itself, and needed not to be guarded by the men of war, but was itself a guard to them. With what a noble defiance of the enemy did it leave all it its friends half a mile behind except the unarmed priests that carried it as perfectly sufficient for its own safety and theirs that followed it! (3.) Thus it was the better seen by those that were to be led by it: That you may know the way by which you must go, seeing it, as it were, chalked out or tracked by the ark. Had they been allowed to come near it, they would have surrounded it, and none would have had the sight of it but those that were close to it; but, as it was put at such a distance before them, they would all have the satisfaction of seeing it, and would be animated by the sight. And it was with good reason that this provision was made for their encouragement: For you have not passed this way heretofore. This had been the character of all their way through the wilderness, it was an untrodden path, but this especially through Jordan. While we are here we must expect and prepare for unusual events, to pass ways that we have not passed before, and much more when we go hence; our way through the valley of the shadow of death is a way we have not gone before, which makes it the more formidable. But, if we have the assurance of God's presence, we need not fear; that will furnish us with such strength as we never had when we come to do a work we never did.