“If we want to bring back the King, if we want to hasten His coming, we must take the Gospel to the last tribe, the last people, the last nation. We must go to “the regions beyond,” to the places where “Christ…has not been named” (Romans 15:20). That was always Paul’s method. He did not enjoy building on another man’s foundation. The place of greatest need is always God’s place of greatest opportunity. Jesus never forgot the “other towns” (Mark 1:38) and the “other sheep” (John 10:16).
Oswald J. Smith, The Challenge of Missions, page 134