This volume draws together leading theologians and Christian ethicists from across the globe to critically engage with and reflect upon Gerald McKenny, widely acknowledged as one of the most original and important Christian ethicists working today. The essays highlight the significance of McKenny's interventions with a range of important debates in contemporary theological ethics, ranging from analyses of the Protestant conception of grace to bioethics and medicine. Reaching far beyond the work of Gerald McKenny, this multifaceted volume is a high-level resource for students and scholars of theological and philosophical ethics.