10 But Joshua had commanded the army, “Do not give a war cry, do not raise your voices, do not say a word until the day I tell you to shout. Then shout!”

Read Joshua 6:10 Using Other Translations

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.
But Joshua commanded the people, "You shall not shout or make your voice heard, neither shall any word go out of your mouth, until the day I tell you to shout. Then you shall shout."
“Do not shout; do not even talk,” Joshua commanded. “Not a single word from any of you until I tell you to shout. Then shout!”