V. Jericho is condemned to a perpetual desolation, and a curse pronounced upon the man that at any time hereafter should offer to rebuild it (v. 26): Joshua adjured them, that is, the elders and people of Israel, not only by their own consent, obliging themselves and their posterity never to rebuild this city, but by the divine appointment, God himself having forbidden it under the severe penalty here annexed. 1. God would hereby show the weight of a divine curse; where it rests there is no contending with it nor getting from under it; it brings ruin without remedy or repair. 2. He would have it to remain in its ruins a standing monument of his wrath against the Canaanites when the measure of their iniquity was full, and of his mercy to his people when the time had come for their settlement in Canaan. The desolations of their enemies were witnesses of his favour to them, and would upbraid them with their ingratitude to that God who had done so much for them. The situation of the city was very pleasant, and probably its nearness to Jordan was an advantage to it, which would tempt men to build upon the same spot; but they are here told it is at their peril if they do it. Men build for their posterity, but he that builds Jericho shall have no posterity to enjoy what he builds; his eldest son shall die when he begins the work, and if he take not warning by that stroke to desist, but will go on presumptuously, the finishing of his work shall be attended with the funeral of his youngest, and we must suppose all the rest cut off between. This curse, not being a curse causeless, did come upon that man who long after rebuilded Jericho (1 Kings xvi. 34), but we are not to think it made the place ever the worse when it was built, or brought any hurt to those that inhabited it. We find Jericho afterwards graced with the presence, not only of those two great prophets Elijah and Elisha, but of our blessed Saviour himself, Luke xviii. 35; xix. 1; Matt. xx. 29. Note, It is a dangerous thing to attempt the building up of that which God will have to be destroyed. See Mal. i. 4.