Tim Chester is a pastor of Grace Church in Boroughbridge, North Yorkshire, England, and a faculty member with the Acts 29 Oak Hill Academy. He is the author of over thirty books, including Bible Matters, Mission Matters, and Closing the Window.

John R. W. Stott (1921-2011) was known worldwide as a preacher, evangelist, and communicator of Scripture. For many years he served as rector of All Souls Church in London, where he carried out an effective urban pastoral ministry. A leader among global evangelicals, Stott was a principal framer of the landmark Lausanne Covenant. His many books include Basic Christianity, The Cross of Christ, and Christian Mission in the Modern World.