God is authoring one story with the aim of reaching all the nations, and one method to reach them - all believers.
"Why would you want to go to Asia when there are so many needy people right around here?" So reasoned my non-Christian friend as I explained that I would be going to Thailand soon to do missions work. This was some years back, but I still remember watching the concerned expression on his face. He really thought he'd made a tremendous point.