Joshua 6:10

6:10 Now Joshua had instructed the army, “Do not give a battle cry or raise your voices; say nothing until the day I tell you, ‘Give the battle cry.’ Then give the battle cry!”

Joshua 6:20

6:20 The rams’ horns sounded and when the army heard the signal, they gave a loud battle cry. The wall collapsed and the warriors charged straight ahead into the city and captured it.