Joshua 4:19-24

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

20And those twelve stones, which they took out of Jordan, did Joshua set up in Gilgal. 21And he spoke to the children of Israel, saying, When your children shall ask their fathers in time to come, saying, What mean these stones?1 22Then ye shall let your children know, saying, Israel came over this Jordan on dry land. 23For the LORD your God dried up the waters of Jordan from before you, until ye had passed over, as the LORD your God did to the Red sea, which he dried up from before us, until we had gone over: 24That all the people of the earth might know the hand of the LORD, that it is mighty: that ye might fear the LORD your God for ever.2