Joshua 24:25-27

25On that day Joshua made a covenant for the people at Shechem and established a statute and ordinance for them.

26Joshua recorded these things in the book of the law of God; he also took a large stone and set it up there under the oak at the sanctuary of the Lord.

27And Joshua said to all the people, “You see this stone — it will be a witness against us, for it has heard all the words the Lord said to us, and it will be a witness against you, so that you will not deny your God.”