The verse that Jesus uses often and repeatedly is, "The first generation shall be the last, and the last generation shall be first". (Jesus is talking about Heaven.) Some of the verses have, "...few will be chosen but many will be called". This parable (in my opinion) is similar to the research that has been done with light's photons and relativity. Of course heaven would have to be on Earth; I mean where else would it originate from? The first generation starts the process of creating heaven and heaven is not finished or completed until the last generation has achieved love peace and harmony for all, all the time and forever. (Daunting task)
Imagine trying to explain the inner workings of light and relativity with no foundation of vocabulary or mathematical science. Was Jesus' use of parables the best way of accomplishing this daunting task; Would there have been a better way to explain relativity knowing that the realization of relativity would not come for another two thousand years? Jesus often said, "I am the light" so maybe Jesus was explaining light rather than all of relativity?
I do know that this type of talk upsets Atheists and people that like to explain the New Testament with the Old Testament but if we could keep the insults to a minimum I would appreciate it.