Deuteronomy 27:5-10

5Build there an altar to the Lord your God, an altar of stones. Do not use any iron tool on them.

6Build the altar of the Lord your God with fieldstones and offer burnt offerings on it to the Lord your God.

7Sacrifice fellowship offerings there, eating them and rejoicing in the presence of the Lord your God.

8And you shall write very clearly all the words of this law on these stones you have set up.”

9Then Moses and the Levitical priests said to all Israel, “Be silent, Israel, and listen! You have now become the people of the Lord your God.

10Obey the Lord your God and follow his commands and decrees that I give you today.”