Joshua 6:5

and it shall come to pass that, when they make a long blast with the ram's horn, in a long-sustained, single note, and when ye hear the sound of the trumpet, all the people shall shout with a great shout, the cry of an army confident of victory; and the wall of the city shall fall down flat, topple over and lie prostrate, and the people shall ascend up, the ranks turning to face the city, every man straight before him, in perfect order of attack, without turning either to the right or to the left. This was the order of the Prince of the angelic host as it was imparted to Joshua at that wonderful meeting.