Deuteronomy 27:9

6 You shall build the altar of Yahweh your God of uncut stones; and you shall offer burnt offerings thereon to Yahweh your God:

7 and you shall sacrifice peace-offerings, and shall eat there; and you shall rejoice before Yahweh your God.

8 You shall write on the stones all the words of this law very plainly.

9 Moses and the priests the Levites spoke to all Israel, saying, Keep silence, and listen, Israel: this day you are become the people of Yahweh your God.

10 You shall therefore obey the voice of Yahweh your God, and do his commandments and his statutes, which I command you this day.

11 Moses charged the people the same day, saying,

12 These shall stand on Mount Gerizim to bless the people, when you are passed over the Jordan: Simeon, and Levi, and Judah, and Issachar, and Joseph, and Benjamin.