Edward P. Hahnenberg, Ph.D. is the Jack and Mary Jane Breen Chair in Catholic Systematic Theology at John Carroll University in Cleveland, Ohio. He taught previously at Xavier University in Cincinnati and at the University of Notre Dame, where he received his Ph.D. in 2002. Dr. Hahnenberg is the author of three books—Ministries: A Relational Approach (Crossroad, 2003), A Concise Guide to the Documents of Vatican II (St. Anthony Messenger Press, 2007), and Awakening Vocation: A Theology of Christian Call (Liturgical Press, 2010)—and numerous articles in academic and pastoral journals. He is currently a delegate to the U.S. Lutheran-Catholic Dialogue and was a theological consultant to the U.S. Bishops’ Subcommittee on Lay Ministry in its preparation of the document Co-Workers in the Vineyard of the Lord. In 2011 he received the Spirit of the Conference Award from the National Association for Lay Ministry in recognition of his contributions to the church’s ministerial life.