If it wasn't God's purpose for us to live forever on the earth, where would Adam be right now?
This questions lacks two things needed to have an intelligent conversation about anything, let alone this:
- Context
- Factual Information
This question assumes way too much for one thing. This question is based on what is at best a theory. Thus I must reject the very premise of the question.
God hasn't made anything clear at all, such as why we are here. Adam has the exact same credentials of a 'known to have lived on earth' mammal as Frodo and Gandalf.
Adam, Frodo, Gandalf. All have exactly the same amount of evidence of existence.
Perhaps they are all in heaven after all. Or they all made it to the western shore. Regardless, none of them seem to have left a forwarding address.
Maybe they're in hell.
Well, perhaps you catch my drift. Good luck with this question. Once it is answered to your satisfaction, maybe you can figure out when Gandalf is coming back with the Elves to war with the terrorists on earth. That would be nice....