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 8:22

8:22 At the same time the men who had taken the city came out to fight, and the men of Ai were trapped in the middle. The Israelites struck them down, leaving no survivors or refugees.