And when there is a long blast of the ram’s horn and you hear its sound, have all the people give a mighty shout. Then the wall of the city will collapse and all your people will charge straight into the city.”
We have here a contest between God and the men of Jericho, and their different resolutions, upon which it is easy to say whose word shall prevail. I. Jericho resolves Israel shall not be its master, Jos 6:1. It was straitly shut up, because of the children of Israel.
Commenting on Joshua 6:1-5
And it shall come to pass, that when they make a long blast with the ram's horn,.... Continue blowing, and protracting, and drawing out the sound a long time; which they did only on the seventh day; on the other days it was but a short blast they made at a time; so that this being different, it would be a good sign and token...
The wall of the city shall fall down flat - Several commentators, both Jews and Christians, have supposed that the ground under the foundation of the walls opened, and the wall sunk into the chasm, so that there remained nothing but plain ground for the Israelites to walk over.