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Portrait of William Gregory

William Gregory, Ph.D.

Associate Professor of Religious Studies

Educational Background

Ph.D., Systematic Theology, Boston College

B.A., Religious Studies, Fairfield University

Teaching Philosophy

Knowledge has a power all its own to transform lives and open up the world anew. I mainly aspire to be a messenger, to share great ideas through good conversation.


Professional Background

Dr. William P. Gregory joined the Clarke faculty in 2008. Previously, he taught in the Religious Studies Department at the University of Dayton and with the Christian Brothers in The Gambia, West Africa, through the US Peace Corps. His research interests include the theology of mission, religious epistemology, intellectual challenges to religious faith, and Western culture as a context for Christian mission. He served as President of the Association of Professors of Mission in 2011 and edited Go Forth: Toward a Community of Missionary Disciples (Orbis, 2019), a collection of Pope Francis’s teachings on mission. He has published articles in the International Bulletin of Mission Research and the International Review of Mission.

Courses Taught

  • RELS 211 Faith and Doubt
  • RELS 213 Christianity and American Culture
  • RELS 217 Science and Religion
  • RELS 218 Ethics for Christian Living
  • RELS 402 Trinity, Mission, and World Christianity


  • Publications

    Pope Francis, Go Forth: Toward a Community of Missionary Disciples, selected with commentary by William P. Gregory (Maryknoll, NY: Orbis Books, 2019). Catholic Press Association media award: Second Place Award for a book on Pope Francis.

    “Pope Francis’s Effort to Revitalize Catholic Mission,” International Bulletin of Mission Research, Vol. 43, No. 1 (January 2019), 7-19. 

  • Presentations

    Five 60-minute lectures on “Pope Francis and the Mission of the Church,” Summer Clergy Institute, July 6-7, 2021, San Alfonso Retreat House, Long Branch, NJ.

    “The Practical Turn in Magisterial Mission Theology under Pope Francis,” webinar on  “Pope Francis and Mission,” Overseas Ministries Study Center, January 7, 2021, Princeton Theological Seminary, Princeton, NJ.