Scott Walker Hahn (born October 28, 1957) is an American Catholic theologian and Christian apologist. A former Presbyterian minister who converted to Catholicism, Hahn's popular works include Rome Sweet Home and The Lamb's Supper: The Mass as Heaven on Earth. His lectures have been featured in multiple audio distributions through Lighthouse Catholic Media. Hahn is known for his research on Early Christianity during the Apostolic Age and various theoretical works concerning the early Church Fathers. Hahn currently teaches at the Franciscan University of Steubenville, a Catholic university in Steubenville, Ohio. He has also lectured at the Pontifical College Josephinum in Columbus, Ohio. Hahn is married to Kimberly Hahn, who co-runs their Catholic apostolate, the St. Paul Center for Biblical Theology. Education Hahn received his B.A. degree magna cum laude in 1979 from Grove City College in Pennsylvania with a triple major of theology, philosophy and economics. He obtained his M.Div. degree summa cum laude from Gordon–Conwell Theological Seminary in 1982. In May 1995, he was awarded a Ph.D. degree in systematic theology from Marquette University (Phi Beta Kappa). Hahn's dissertation is titled "Kinship by Covenant: A Biblical Theological Analysis of Covenant Types and Texts in the Old and New Testaments". A version was published by Yale University Press in 2009 as Kinship by Covenant: A Canonical Approach to the Fulfillment of God's Saving Promises. Harvard professor Jon D. Levenson described it as "a learned and well-written volume interprets covenant as the red thread running through both testaments of the Christian Bible." Conversion to Catholicism After receiving his education at Gordon–Conwell Theological Seminary, Hahn started out as a pastor at Trinity Presbyterian Church in Fairfax, Virginia. Since that time, he has held a variety of positions at institutes, seminaries, and universities. As a young man, Hahn was convinced that the Catholic Church was in error and boasted of having converted some Catholics into embracing a purer Christianity. His conversion began when he and his wife became convinced that contraception was contrary to God's law. He was bothered that the Catholic Church was the only Christian church tradition that upheld the ancient teaching of prohibiting contraception that Protestants abandoned in the early 20th century, such as at the 1930 Lambeth Conference. Hahn continued to study various issues relating to salvation, faith, and good works, as well as the Protestant doctrine of sola scriptura. According to his book Rome Sweet Home, a key