Joshua Chapter 4, Verse 6

6: 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?- edit KJV text
6: That it may be a sign among you: and when your children shall ask you tomorrow, saying: What means these stones?— edit Douay text
6: that these may be to you continually for an appointed sign, that when thy son asks thee in future, saying, What are these stones to us?— edit LXX text