'Time to Come' in the Bible

so that this may be a sign to you when your sons ask in time to come, saying, What do you mean by these stones?

And he spoke to the sons of Israel saying, When your sons shall ask their fathers in time to come, saying, What do these stones mean?

And if we have not done it for fear of this thing, saying, In time to come your sons might speak to our sons, saying, What have you to do with Jehovah, the God of Israel?

but it shall be a witness between us and you, and our generations after us, so that we might do the service of Jehovah before Him with our burnt offerings and with our sacrifices and with our peace offerings; so that your sons may not say to our sons in time to come, You have no part in Jehovah.

And we said that when they should say so to us or to our generations in time to come, that we may say, Behold the pattern of the altar of Jehovah which our fathers made, not for burnt offerings nor for sacrifices, but it is a witness between us and you.