God does not destroy what He creates. How do I know? Well... first of all He has given us a Natural Law which tells us He does not destroy what He creates; The First Law of Thermodynamics which states that matter and energy cannot be destroyed or created. Since time and space were created matter and energy have only changed form. Secondly, He tell us in Genesis what He created is good. He does not destroy what is good. It is not in His Nature to do so.