By Man Shall His Blood Be Shed: A Catholic Defense of Capital Punishment

This monograph presents a comprehensive philosophical and theological defense of capital punishment from within the Catholic intellectual tradition. Edward Feser, along with co-author Joseph Bessette, challenges the contemporary trend within Catholic circles toward abolishing the death penalty, arguing that both natural law philosophy and Catholic doctrine have consistently affirmed its legitimacy in principle.

The work operates on multiple levels of argumentation. At the philosophical level, Feser employs Thomistic natural law theory to argue that capital punishment serves essential functions of retributive justice. Drawing on Aquinas and the broader scholastic tradition, he contends that the death penalty appropriately responds to the gravest crimes by recognizing the intrinsic dignity of human free will and moral responsibility. The authors argue that denying the state's right to execute murderers paradoxically diminishes human dignity by treating grave moral choices as insufficiently serious to warrant ultimate consequences.

At the theological level, the book examines scriptural passages, patristic sources, papal statements, and catechetical texts to demonstrate what the authors view as unbroken doctrinal support for capital punishment throughout Catholic history. They argue that Genesis 9:6 establishes divine authorization for the practice, while numerous papal statements from medieval through modern times have affirmed the state's legitimate authority to impose death sentences. The work particularly critiques recent Catholic opposition to capital punishment as representing a problematic departure from traditional teaching.

The monograph's significance for debates about God lies in its exploration of how divine authority, natural law, and human justice intersect. Feser argues that properly understood Catholic anthropology, which views humans as created in God's image with genuine moral agency, actually requires the possibility of capital punishment rather than prohibiting it. The work challenges both secular arguments against the death penalty and religious arguments that invoke divine mercy or human dignity to oppose it.

Methodologically, the book combines careful textual analysis of theological sources with philosophical argumentation in the natural law tradition. Feser engages contemporary Catholic theologians and ethicists who oppose capital punishment, including recent papal statements suggesting development of doctrine on this issue. The work exemplifies how traditional Catholic philosophy continues to generate controversial conclusions about moral and political questions, demonstrating the ongoing vitality and complexity of natural law reasoning within contemporary religious discourse.