Joshua 4:19-21

King James Version

¹⁹ And 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.

²⁰ And those twelve stones, which they took out of Jordan, did Joshua pitch in Gilgal.

²¹ And he spake unto the children of Israel, saying, When your children shall ask their fathers in time to come, saying, What mean these stones?