Dr. Tim Gray

Dr. Gray is the co-founder and president of the Augustine Institute. He holds a Ph.D. in biblical studies from Catholic University of America and is the author of several books including Peter: Keys to Following Jesus. He leads annual pilgrimages to Rome and the Holy Land. He resides in Denver with his wife, Kris, and their son, Joseph.

Dr. Mark Giszczak

Dr. Mark Giszczak is an Associate Professor of Sacred Scripture at the Augustine Institute with a passion for Scripture and helping Catholics read, pray with, and understand the Bible. He studied philosophy and theology at Ave Maria College after which he joined the inaugural class of the Augustine Institute where he focused on Scripture. He then completed his doctoral work at The Catholic University of America and wrote his dissertation on the characters in the Song of Songs. Dr. Giszczak recently earned an additional degree from the Pontifical Biblical Commission and continues to have a deep interest in the oft-overlooked texts of the Old Testament.

Dr. John Sehorn

An Assistant Professor of Theology at the Augustine Institute, Dr. John Sehorn has a deep interest in patristic theology and exegesis, as well as biblical studies and medieval theology. Following the completion of his B.A. in History at Arizona State University, he received an M.A. in Early Christian Studies at the University of Notre Dame, where he remained to complete his Ph.D. in the History of Christianity. His dissertation focused on Origen of Alexandria’s homilies on Ezekiel.

Dr. Elizabeth Klein

An Assistant Professor of Theology at the Augustine Institute, Dr. Elizabeth Klein is interested in the writings of the early Christian Fathers, as well as early Christian art and liturgy, but remains most devoted to the works of St. Augustine. Originally from Canada, she attended McMaster University with a major in Religious Studies, and later obtained an M.A. in Theology from the same institution. She continued her studies at Notre Dame where she completed a Ph.D. in 2016. Her dissertation was on the topic of Augustine’s angelology, and should appear sometime next year as a book entitled Augustine’s Theology of Angels (Cambridge University Press).

Dr. Michael Morris

Dr. Michael Morris earned his undergraduate degree from the University of Mary in Bismarck, ND where he studied business, philosophy and theology. He later received his M.A. in Sacred Scripture from the Augustine Institute and taught Scripture for two years in Denver. He completed his Ph.D. in Biblical Studies at Trinity College Dublin, and his dissertation on anti-demonic traditions in early Judaism and early Christianity is published by Mohr Siebeck. Currently, Michael teaches for the lay and permanent diaconate formation divisions of the St. John Vianney Theological Seminary in Denver.

Deb Holiday

Deb Holiday received her B.A. from Rutgers University and M.A. in Sacred Scripture from the Augustine Institute. She has worked for the Catholic Biblical School for over 10 years in many roles including Interim Director and Lead Instructor. A guest on the Augustine Institute’s Symbolon and Reborn series, she is often a go-to for commentary on Scripture. She has spoken at the National Catholic Bible Conference and has led several retreats and pilgrimages to the Holy Land.

Dr. Scott Powell

Dr. Scott Powell is a teacher, theologian, author, and the director of the Aquinas Institute for Catholic Thought, an outreach to the University of Colorado in Boulder. He and his wife Annie are the founders of Camp Wojtyla, a Catholic adventure program for youth, based in the Colorado Rockies. Scott has appeared in numerous Augustine Institute Studio productions, and has been featured on EWTN, Catholic Answers Live, and numerous other Catholic outlets. He holds a PhD in Catholic Studies from Maryvale Institute/Liverpool Hope University in England.