Joshua 6:2-5

2Then Adonai said to Joshua, “Look, I have given Jericho into your hand, with its king and mighty warriors.

3Now you are to march around the city, all the men of war circling the city once. So you are to do for six days.

4Seven kohanim will carry seven shofarot of rams’ horns before the ark. Then on the seventh day you are to circle the city seven times while the kohanim blow the shofarot.

5It will be when they make a long blast with the ram’s horn, when you hear the sound of the shofar, have all the people shout a loud shout—then the wall of the city will fall down flat, and the people will go up, everyone straight ahead.”