Bruce G. Epperly is an ordained minister in the Christian Church (Disciples of Christ) and United Church of Christ. He has written more than 20 books in the areas of theology, spirituality, ministerial excellence, spiritual formation, and healing and wholeness. Recognized as a leader in lay and pastoral faith formation, he served as Director of Continuing Education and Professor of Practical Theology at Lancaster Theological Seminary (2003-2010). Prior to that, he was Director of the Protestant Ministry and Adjunct Professor in Theology, Spirituality, and Medicine at Georgetown University and Medical School (1982-1999), and Acting Associate Dean, Assistant to the President for On-line Programs, and Adjunct Professor in Theology, Spirituality, and Pastoral Care at Wesley Theological Seminary (2000-2003). He has also served as an interim minister in Christian Church (Disciples of Christ) and United Church of Christ congregations as well as pastor of Disciples United Community Church (Dis Jack A. Keller, Jr. served as project editor for the critically-acclaimed and best-selling New Interpreter's Bible commentary series. Dr. Keller is co-editor of the 26-volume Immersion Bible Studies series. A regular Sunday school teacher himself, he has been writing and editing resources for laity, pastors, students, and scholars for more than 25 years.