Dr. Peter S. Williamson occupies the Adam Cardinal Maida Chair in Sacred Scripture at Sacred Heart Major Seminary in Detroit, Michigan. He received his M.A. in Theology from Sacred Heart in 1995 and his S.T.D. in Biblical Theology from the Gregorian University in 2001. Dr. Williamson, a convert to the Catholic Church in 1972, is a married layman who has been involved for over 35 years in evangelization and pastoral ministry. He is the author of Ephesians (Baker, 2009) in the Catholic Commentary on Sacred Scripture and general editor of the series along with Dr. Mary Healy. In addition he is author of Catholic Principles for Interpreting Scripture: A Study of the Pontifical Biblical Commission's "The Interpretation of the Bible in the Church" (Loyola Press, 2002) and co-editor with Ralph Martin of John Paul II and the New Evangelization (revised edition, St. Anthony Messenger, 2006).