Then Joshua built on Mount Ebal an altar to the Lord, the God of Israel. 1
References for Joshua 8:30
8.30-32 Dt 27.2-8.
He made it according to the instructions that Moses, the Lord's servant, had given the Israelites, as it says in the Law of Moses: "an altar made of stones which have not been cut with iron tools." On it they offered burnt sacrifices to the Lord, and they also presented their fellowship offerings. 2
References for Joshua 8:31
There, with the Israelites looking on, Joshua made on the stones a copy of the Law which Moses had written.
References for Joshua 8:32
The Israelites, with their leaders, officers, and judges, as well as the foreigners among them, stood on two sides of the Lord's Covenant Box, facing the levitical priests who carried it. Half of the people stood with their backs to Mount Gerizim and the other half with their backs to Mount Ebal. The Lord's servant Moses had commanded them to do this when the time came for them to receive the blessing. 3
References for Joshua 8:33
8.33-35 Dt 11.29; 27.11-14.
Joshua then read aloud the whole Law, including the blessings and the curses, just as they are written in the book of the Law.
Every one of the commandments of Moses was read by Joshua to the whole gathering, which included women and children, as well as the foreigners living among them.