Yehoshua 4:5-7

Orthodox Jewish Bible

⁵ And Yehoshua said unto them, Pass over before the Aron Hashem Eloheichem into the middle of the Yarden, and take you up every ish of you an even (stone) upon his shoulder, according unto the number of the Shivtei Bnei Yisroel;

⁶ That this may be an ot among you, that when your banim ask in time to come, saying, What mean ye by these avanim?

⁷ Then ye shall answer them, That the waters of the Yarden were cut off from before the Aron Brit Hashem; when it passed over the Yarden, the waters of the Yarden were cut off; and these avanim shall be for a zikaron (memorial) unto the Bnei Yisroel ad olam (forever).