Joshua 6:20

20. So the people shouted The trumpets gave the signal and then the people shouted. The trumpets had been silent during the speech of Joshua, (Joshua 6:17-19,) then came the signal, and the war-cry, and the downfall. How vain the attempt of some to strip this event of the miraculous by ascribing it to an earthquake! How came Joshua to know that an earthquake would occur at that particular juncture? Such knowledge would be a greater miracle. Equally untenable is the theory that the walls had been extensively mined by a people brought up in the desert, in utter ignorance of that method of conducting war. How absurd to imagine that even the most skilful engineer could so undermine a wall that it would stand till a shout should topple it down! Verily, sceptics are the most credulous people in the world. This miracle put into the hand of Joshua the key to Canaan, the strongest city in the land. With no experience in the art of besieging and storming cities, they could not immediately, without the divine aid, have reduced this stronghold. It also gave both Israel and Canaan overwhelming proof of the omnipotence of Jehovah and of his alliance with Joshua.