Joshua 6:10
And Joshua had commanded the people, saying, Ye shall not shout, nor make any noise with your voice, neither shall any word proceed out of your mouth, until the day I bid you shout; then shall ye shout.
Cross-reference
Exodus 32:17
Contrast
In Exodus 32:17, Joshua hears the people shouting in idolatry — contrasting the obedient, commanded shout at Jericho.