D. Stephen Long (PhD Duke University) is the Cary M. Maguire University Professor of Ethics at Southern Methodist University. He is author of Hebrews (Interpretation) (Westminster John Knox Press, 2011), Saving Karl Barth: Hans Urs von Balthasar’s Preoccupation (Fortress Press, 2014), and The Perfectly Simple Triune God: Aquinas and His Legacy (Fortress Press, 2016).