Joshua 22:27-28

22:27 but as a reminder to us and you, and to our descendants who follow us, that we will honor the Lord in his very presence with burnt offerings, sacrifices, and tokens of peace. Then in the future your descendants will not be able to say to our descendants, ‘You have no right to worship the Lord.’ 22:28 We said, ‘If in the future they say such a thing to us or to our descendants, we will reply, “See the model of the Lord’s altar that our ancestors made, not for burnt offerings or sacrifices, but as a reminder to us and you.”’

Joshua 22:34

22:34 The Reubenites and Gadites named the altar, “Surely it is a Reminder to us that the Lord is God.”