John Piper has had a profound impact on countless men and women over his nearly thirty years of ministry. From his online ministry with Desiring God to his preaching ministry at Bethlehem Baptist to his writing ministry in over thirty books, his faithful service has encouraged and challenged many with God’s Word.Piper’s influence does not stem from his own abilities and accomplishments, but finds its source in his consistent and humble leading of others to Scripture, where the breathtaking glory of God is displayed in all its wonder. We rejoice and are changed as we encounter glorious truths about God in Piper’s ministry.It is in this spirit that friends and colleagues of Piper, including Wayne Grudem, D. A. Carson, Randy Alcorn, and others, honor him by presenting essays covering topics central to his ministry: prayer, the sovereignty of God, justification, Jonathan Edwards, Christian Hedonism, and more.Pastors, scholars, and lay leaders will benefit from this tribute to a man who has labored so faithfully for the fame of God’s name.About the AuthorSam Storms (PhD, University of Texas at Dallas) has spent more than four decades in ministry as a pastor, professor, and author. He is currently the senior pastor at Bridgeway Church in Oklahoma City, Oklahoma, and was previously a visiting associate professor of theology at Wheaton College from 2000 to 2004. He is the founder of Enjoying God Ministries and blogs regularly at SamStorms.com.Justin Taylor (PhD, The Southern Baptist Theological Seminary) is the executive vice president of book publishing and book publisher at Crossway. He has edited and contributed to several books, including A God-Entranced Vision of All Things and Reclaiming the Center, and he blogs at Between Two Worlds-hosted by the Gospel Coalition.Randy Alcorn (MA, Multnomah University) is the founder and director of Eternal Perspective Ministries and a New York Times best-selling author of over fifty books. His books have sold over nine million copies and been translated into nearly seventy languages. Alcorn resides in Gresham, Oregon, with his wife, Nanci. They have two married daughters and five grandsons.G. K. Beale (PhD, University of Cambridge) is professor of New Testament and biblical theology at Westminster Theological Seminary. In recent years he has served as president and member of the executive committee of the Evangelical Theological Society. He has written several books and articles on biblical studies.D. A. Carson (PhD, Cambridge University) is research professor of New Testament at Trinity Evangelical Divinity School, where he has taught since 1978. He is a cofounder of the Gospel Coalition and has written or edited nearly 120 books. He and his wife, Joy, have two children and live in the north suburbs of Chicago.Mark Dever (PhD, Cambridge University) is the senior pastor of Capitol Hill Baptist Church in Washington, DC, and president of 9Marks (9Marks.org). Dever has authored over a dozen books and speaks at conferences nationwide.Wayne Grudem (PhD, University of Cambridge; DD, Westminster Theological Seminary) is research professor of theology and biblical studies at Phoenix Seminary, having previously taught for 20 years at Trinity Evangelical Divinity School. He is a former president of the Evangelical Theological Society, a member of the Translation Oversight Committee for the English Standard Version of the Bible, the general editor of the ESV Study Bible, and has published over 20 books.John MacArthur is the pastor-teacher of Grace Community Church in Sun Valley, California, where he has served since 1969. He is known around the world for his verse-by-verse expository preaching and his pulpit ministry via his daily radio program, Grace to You. He has also written or edited nearly four hundred books and study guides. MacArthur serves as the president of the Master’s University and Seminary. He and his wife, Patricia, live in Southern California and have