Joshua 22:27-28

27Instead, it is to be a witness between us and you, and between the generations after us, so that we may carry out the worship of the Lord in his presence with our burnt offerings, sacrifices, and fellowship offerings. Then in the future, your descendants will not be able to say to our descendants, ‘You have no share in the Lord!’

28We thought that if they said this to us or to our generations in the future, we would reply: Look at the replica of the Lord’s altar that our ancestors made, not for burnt offering or sacrifice, but as a witness between us and you.