Jonathan Cahill's book offers a careful and nuanced analysis of the role of emotions in the Christian moral life, particularly as construed in the Barthian tradition. Cahill does so from a perspective that is both richly Christocentric while also deeply informed by recent scientific insights into the nature of human emotions. His deeply relational account of theological anthropology will strike a cord in many contemporary readers, as well his account of how divine grace seeks to transform rather than suppress our natural human emotions. This important contribution is a must read for contemporary Christian ethicists. * Stephen Pope, Boston College, USA * Cahill's lucid and insightful analyses of emotions as moral capacities and of moral formation as a communal enterprise place this book on the leading edge of scholarship on theological ethics. At the same time, its strikingly original and ultimately persuasive claim that Karl Barth makes an indispensable contribution to these topics places it on the leading edge of Barth's studies. I learned a lot about Barth and a lot about the Christian moral life from this book, and I highly recommend it to anyone who is interested in either. * Gerald McKenny, University of Notre Dame, USA * In this fine study, Jonathan Cahill brings together what may seem an unlikely combination of topics: emotion, moral formation, and Barths moral theology. The result is an original and carefully worked-out account that offers a valuable contribution to Christian ethical understanding and, as Cahill shows, to engagement with pressing current concerns such as the climate emergency. * Neil Messer, Baylor University, USA *