Deuteronomy 27:8

And you shall write very plainly on the stones all the words of this law."

Surrounding context

27:7 You shall offer peace offerings, and shall eat there, and rejoice before the LORD your God.

27:8 And you shall write very plainly on the stones all the words of this law."

27:9 Then Moses and the priests, the Levites, spoke to all Israel, saying, "Take heed and listen, O Israel: This day you have become the people of the LORD your God.

Translation and sources