This lecture was given on August 29, 2023, at Mississippi State For more information on upcoming events, please visit our website at www.thomisticinstitute.org. About the speaker: Bruce D. Marshall is Lehman Professor of Christian Doctrine at Southern Methodist University. His teaching specialties are Medieval and Reformation theology and systematic theology. His research interests include Doctrine of the Trinity, Christology, philosophical issues in theology, sacramental theology, and Judaism and Christian theology. He is the author of Trinity and Truth (Cambridge University Press, 2000).