Joshua 24:24-27

And the people said to Joshua, “The LORD our God we will serve, and his voice we will obey.” So Joshua made a covenant with the people that day, and put in place statutes and rules for them at Shechem. And Joshua wrote these words in the Book of the Law of God. And he took a large stone and set it up there under the terebinth that was by the sanctuary of the LORD. And Joshua said to all the people, “Behold, this stone shall be a witness against us, for it has heard all the words of the LORD that he spoke to us. Therefore it shall be a witness against you, lest you deal falsely with your God.”