'Time to Come' in the Bible

that this may be a sign among you, that, when your children ask in time to come, saying, What do ye 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 [rather] out of carefulness done this, from purpose, saying, In time to come your sons might speak to our sons, saying, What have ye to do with LORD, the God of Israel?

Therefore we said, It shall be, when they so say to us or to our generations in time to come, that we shall say, Behold the pattern of the altar of LORD, which our fathers made, not for burnt-offering, nor for sacrifice, but it is