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 24:27
24:27 Joshua said to all the people, “Look, this stone will be a witness against you, for it has heard everything the Lord said to us. It will be a witness against you if you deny your God.”