Christianity is declining in the West. Churches in the United States, Canada, Australia, and Europe are closing their doors at an accelerating rate. How will the church respond? In this short but sweeping manifesto, New York Times bestselling author and pastor Timothy Keller argues that this decline should prompt us to rethink evangelism from the ground up. Using the early church as our guide, churches and individual Christians must examine ourselves, our culture, and Scripture to work toward a new missionary encounter with Western culture that will make the gospel both attractive and credible to a new generation.