Then he spoke to the children of Israel, saying: “When your children ask their fathers in time to come, saying, ‘What are these stones?’
that this may be a sign among you when your children ask in time to come, saying, ‘What do these stones mean to you?’
So it shall be, when your son asks you in time to come, saying, ‘What is this?’ that you shall say to him, ‘By strength of hand the Lord brought us out of Egypt, out of the house of bondage.
And those twelve stones which they took out of the Jordan, Joshua set up in Gilgal.
then you shall let your children know, saying, ‘Israel crossed over this Jordan on dry land’;