N. T. Wright is the former bishop of Durham and senior research fellow at Wycliffe Hall, Oxford University. He is one of the world's leading New Testament scholars and the award-winning author of many books, including After You Believe, Surprised by Hope, Simply Christian, Interpreting Paul, and The New Testament in Its World, as well as the Christian Origins and the Question of God series.

Michael F. Bird (PhD, University of Queensland) is Deputy Principal and Lecturer in Theology at Ridley College, Australia. He is the author of numerous scholarly and popular books on the New Testament and theology, including Evangelical Theology, Seven Things I Wish Christians Knew about the Bible, and with N. T. Wright,?The New Testament in Its World.