Yehoshua 4:20-22

Orthodox Jewish Bible

²⁰ And those twelve avanim, which they took out of the Yarden, did Yehoshua set in a pile at Gilgal.

²¹ And he spoke unto the Bnei Yisroel, saying, When your banim shall ask their avot in time to come, saying, What mean these avanim?

²² Then ye shall let your banim know, saying, Yisroel crossed over this Yarden on yabashah (dry land [Gn 1:9]).