Joshua 6:20 So the people shouted when the priests blew with the trumpets: and it came to pass, when the people heard the sound of the trumpet, and the people shouted with a great shout, that the wall fell down flat, so that the people went up into the city, every man straight before him, and they took the city.
The same thing is observed when Joshua is directed by God to use praise as a weapon of war. Battles are not won by might, and power, but by obeying God, praying to God and praising Him sincerely, especially in situations where things seem dire. Like Gideon, the Hebrew priests grab their trumpets and it was when they blew their horns, and shouted the praises of The Lord, that God went to work for them, and the massive walls of Jericho were shaken down suddenly by a mighty earthquake.
Here it is again, the same pattern being repeated in the context of conflict, emergency, and difficulty, for it appears as if God gets going when your praises to Him are offered especially when the outlook is grim. The Hebrews are again in dire straits, as the enemy surrounds them, bent on their destruction, and in the midst of their adversity, they do what you and I should always do, when facing trials of no ordinary sort. Observe carefully the same pattern happening over and over again.
2nd Chronicles 20:15 And he said, Hearken you, all Judah, and you inhabitants of Jerusalem, and thou king Jehoshaphat, Thus saith the Lord unto you, Be not afraid nor dismayed by reason of this great multitude; for the battle is not yours, but God's. 17 You shall not need to fight in this battle: set yourselves, stand you still, and see the salvation of the Lord with you, O Judah and Jerusalem: fear not, nor be dismayed; tomorrow go out against them: for the Lord will be with you.
2nd Chronicles 20:18 And Jehoshaphat bowed his head with his face to the ground: and all Judah and the inhabitants of Jerusalem fell before the Lord, worshipping the Lord.
May God add His blessing to the study of His word. “Good night” and God bless!