Joshua 4:6 in the King James Version
That this may be a sign among you, that when your children ask their fathers in time to come, saying, What mean ye by these stones?
Context
5 Joshua said to them, “Cross before the ark of the LORD your God into the middle of the Jordan, and each of you pick up a stone and put it on your shoulder, according to the number of the tribes of the children of Israel;
6 that this may be a sign among you, that when your children ask in the future, saying, ‘What do you mean by these stones?’
7 then you shall tell them, ‘Because the waters of the Jordan were cut off before the ark of the LORD’s covenant. When it crossed over the Jordan, the waters of the Jordan were cut off. These stones shall be for a memorial to the children of Israel forever.’”