Clinton E. Arnold, professor of New Testament language and literature at Talbot School of Theology, is a noted authority on spiritual warfare. He is the author of Power and Magic: The Concept of Power in Ephesians, Powers of Darkness: Principalities and Powers in Paul's Letters, and The Colossian Syncretism: The Interface between Christianity and Folk Belief at Colossae. His Ph.D. degree is from the University of Aberdeen.