Deuteronomy 27:7-9

American Standard Version

⁷ and thou shalt sacrifice peace-offerings, and shalt eat there; and thou shalt rejoice before Jehovah thy God. ⁸ And thou shalt write upon the stones all the words of this law very plainly.

⁹ And Moses and the priests the Levites spake unto all Israel, saying, Keep silence, and hearken, O Israel: This day thou art become the people of Jehovah thy God.