Deuteronomy 27:2, 3, 8

When you have crossed the Jordan into the land the LORD your God is giving you, set up some large stones and coat them with plaster.

Write on them all the words of this law when you have crossed over to enter the land the LORD your God is giving you, a land flowing with milk and honey, just as the LORD, the God of your ancestors, promised you.

And you shall write very clearly all the words of this law on these stones you have set up.”