Joshua 4:20-24

20And those twelve stones which they had taken out of the Jordan did Joshua set up in Gilgal. 21And he spoke to the children of Israel, saying, When your children hereafter ask their fathers, saying, What [mean] these stones? 22then ye shall let your children know, saying, On dry land did Israel come over this Jordan; 23because Jehovah your 1God dried up the waters of the Jordan from before you, until ye had passed over, as Jehovah your 2God did to the Red sea, which he dried up from before us, until we had passed over; 24that all peoples of the earth might know the hand of Jehovah, that it is mighty; that ye might fear Jehovah your 3God continually.