Matthew Levering holds the James N. and Mary D. Perry Jr. Chair of Theology at Mundelein Seminary. He is the author or editor of over forty books on topics in dogmatic, sacramental, moral, historical, and biblical theology. He co-edits two quarterly journals, Nova et Vetera and International Journal of Systematic Theology. Since 2004, he has been a participant in Evangelicals and Catholics Together, and from 2007-2016 he served as Chair of the Board of the Academy of Catholic Theology. He co-founded the Chicago Theological Initiative and has directed the Center for Scriptural Exegesis, Philosophy, and Doctrine since 2011.
Emery de Gaál a is a priest of the Catholic diocese of Eichtätt, Bavaria, Germany. He is chairman and professor of dogmatic theology at the University of St. Mary of the Lake/ Mundelein Seminary. He studied philosophy and theology in Chicago, Pittsburgh, and Munich. De Gaál is the author of O Lord, I Seek Your Countenance: Explorations and Discoveries in Pope Benedict XVI's Theology, The Theology of Pope Benedict XVI: The Christocentric Shift, and numerous articles on Benedict XVI's theology.