There is a great debate going on in the church today. It centers on one question: "What is the mission of the church?" From culturally relevant, emerging congregations to strategic methods of organization and outreach, many claim they have the answer. They say the mission must become "missional." Yet the churches of North America continue to struggle. Uncertainty is growing. "What does it really mean to be 'missional'"? Competing claims abound. "Get...