This new edition of a bestselling textbook (over 185,000 copies sold) draws on key biblical texts to demonstrate that worship is the ultimate goal of the church and that proper worship fuels missionary outreach. John Piper offers a biblical defense of God's supremacy in all things, providing readers with a sound theological foundation for missions. He examines whether Jesus is the only way to salvation and issues a passionate plea for God-centeredness in the missionary enterprise, seeking to define the scope of the task and the means for reaching all nations. The third edition has been revised and expanded throughout and includes new material on the prosperity gospel. The book is essential reading for those involved in or preparing for missions work. It also offers enlightenment for college and seminary students, pastors, youth workers, campus ministers, and all who want to connect their labors to God's global purposes.