America?

And thus I aspired to preach the gospel, not where Christ was already named, so that I would not build on another man's foundation; but as it is written, "they who had no news of Him shall see, and they who have not heard shall understand." --Romans 15:20-21

John Piper on this verse:

He is just passionate to get out of America. He is just passionate to get out of here. Where it has not already been named, "lest I build on someone else's foundation." Is there anybody in this room with that passion? "I don't want to build on my predecessor, I don't want to go to a church that is established! Give me a totally pagan people, give me a people that don't want me to come! Oh God, grant me to do what Paul did." If there is nobody like that in this room we may as well fold up the shop of Christianity, because that job is not done.