Joshua 4:20

18When the priests who bore the ark of the LORD’s covenant had come up out of the middle of the Jordan, and the soles of the priests’ feet had been lifted up to the dry ground, the waters of the Jordan returned to their place, and went over all its banks, as before.

19The people came up out of the Jordan on the tenth day of the first month, and encamped in Gilgal, on the east border of Jericho.

20Joshua set up those twelve stones, which they took out of the Jordan, in Gilgal.

21He spoke to the children of Israel, saying, “When your children ask their fathers in time to come, saying, ‘What do these stones mean?’

22Then you shall let your children know, saying, ‘Israel came over this Jordan on dry land.