Joshua 8:32-33

32And there in the presence of the Israelites, Joshua inscribed on the stones a copy of the law of Moses, which he had written. 33All Israel, foreigners and citizens alike, with their elders, officers, and judges, stood on both sides of the ark of the covenant of the LORD facing the Levitical priests who carried it. Half of the people stood in front of Mount Gerizim and half of them in front of Mount Ebal, as Moses the servant of the LORD had commanded earlier, to bless the people of Israel.