Joshua 8:30-33

30Then Joshua built an altar to the Lord, the God of Israel, on Mount Ebal,

31just as Moses the servant of the Lord had commanded the sons of Israel, as it is written in the Book of the Law of Moses, an altar of uncut stones on which no one has wielded an iron tool; and they offered on it burnt offerings to the Lord, and sacrificed peace offerings.

32And there, in the presence of the sons of Israel, Joshua wrote on the stones a copy of the Law of Moses which Moses had written.

33All Israel, the stranger as well as the native born [among them], with their elders and officers and their judges, stood on either side of the ark before the Levitical priests who carried the ark of the covenant of the Lord. Half of them stood in front of Mount Gerizim and half of them in front of Mount Ebal, just as Moses the servant of the Lord had commanded at first to bless the people of Israel.