Joshua 8:32-33

32There, in the presence of the Israelites, Joshua inscribed on the stones a duplicate of the law written by Moses.

33All the people, rulers, leaders, and judges were standing on either side of the ark, in front of the Levitical priests who carried the ark of the covenant of the Lord. Both resident foreigners and native Israelites were there. Half the people stood in front of Mount Gerizim and the other half in front of Mount Ebal, as Moses the Lord’s servant had previously instructed to them to do for the formal blessing ceremony.