Robert W. Jenson (1930-2017) was an internationally renowned theologian and the author of dozens of books and hundreds of essays and articles. He earned his ThD at the University of Heidelberg, finishing his dissertation in Basel under the guidance of Karl Barth. His two-volume Systematic Theology was published in 1997 and 1999 by Oxford University Press. Brad East (PhD, Yale University) is Assistant Professor in the College of Biblical Studies at Abilene Christian University, Abilene, Texas. His work has been published in Modern Theology, International Journal of Systematic Theology, Scottish Journal of Theology, Anglican Theological Review, and Pro Ecclesia, as well as interpretation, Living Church, Los Angeles Review of Books, Marginalia Review of Books, and Mere Orthodoxy.