Joshua 24:26-27

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 oak that was by the sanctuary of the LORD. Joshua said to all the people, “Behold, this stone shall be for a witness against us, for it has heard all the words of the LORD which He spoke to us; thus it shall be for a witness against you, so that you do not deny your God.”