Christianity and Constitutionalism, edited by Nicholas Aroney and Ian Leigh. Oxford University Press (ISBN: 9780197587256) 2022
Summary: Christianity and Constitutionalism explores the contribution of Christianity to constitutionalism in light of history, law, and theology.
What is constitutionalism? Broadly speaking, it refers to the written and/or unwritten legal framework by which a particular political entity orders its life, be it a monarchy or a democracy. The editors of this work, in their introduction emphasize that this is a contended term. It is either descriptive of what exists in a particular political community or prescriptive of what ought to be. They note its concerns with jurisdiction, authority, and the rule of law. And this reminded me of how important a check this can be on the intrusion of power beyond its proper sphere and the safeguard of the rule of law against corrupt exercises of power.
This purpose of this volume is to explore the contribution of Christianity to constitutionalism. In its three parts, the contributors delineate that contribution through three lenses: history, topics in constitutional law, and particular doctrines bearing on constitutionalism. My review will follow that plan of organization.
Part I: The Historical Influence of Christianity
The articles in this part span history from the Old Testament through Modernity. Jonathan Burnside shows the contribution of Torah to ideas of sovereignty (in this case the sovereignty of God), the covenantal relation between sovereign and people, limited government, separation of powers (kings, priests, and prophets), federalism, and civic virtue. Dorothea H. Bertschmann traces the tension between God’s ultimate rule and the deference due imperial rule. But what pertains when the emperor is Christian? Peter Leithart discusses Constantine and the limits upon state authority when the state recognized church authority. Then Mary Keys and Colleen Mitchell describe how Augustine’s City of God both reoriented love from the earthly to heavenly city while humanizing earthly politics.
As the church moves into the Middle Ages, the emergence of canon law deals with both superior law, binding all, and the division of powers. Richard Helmholz shows how this contribution to constitutionalism haltingly emerged. While the Reformation broke the uniform structures of church and state, it brought forth new elements contributing to constitutionalism. Thus, John Witte, Jr. delineates the new theories of church and state, authority and liberty, duties and rights, legislation and adjudication, and more that proliferated. Finally, Joan Lockwood O’Donovan shows the distinctive contribution of English Reformation public theology in the modern period.
Part II: Christian Perspectives on Constitutionalism
In this part, contributors turn to various topics in constitutional law. Beginning with the concept of sovereignty, Joel Harrison shows how Christianity contributed the idea of intertwining duality and plurality with the one. Li-ann Thio shows how the Christian idea of higher law enriches the rule of law and societal flourishing. Then Richard Ekins addresses the importance of self government to democracy and how ideas of equality and consent of the governed flow from an understanding of God’s rule. Carlos Bernal shows the biblical foundations for the separation of powers, already noted in the Old Testament essay. Julian Rivers offers a critiques of various approaches to human rights rooted in liberal ideologies, arguing that Christians “maintain a coherent and compelling theory of constitutional rights for the good of all.” Capping off these topical discussions, the editors contribute two fine essays on freedom of conscience vis-a-vis religious freedom and on federalism.
Part III: Christian Theology and Constitutionalism
To conclude this volume, the contributors address the relevance of several key Christian doctrines to constitutional law. David VanDrunen explores the relevance of scriptural revelation. Particularly, he focuses in on covenants and especially the Noahic covenant, which authorizes civil authorities to secure justice for capital crimes. According to David McIlroy, Trinitarian belief imposes limits on authorities and distributes authority. And it requires rulers to preserve God’s creational gifts. Jonathan Chaplin traces out eight contemporary implications of the biblical teaching on justice. Tracey Rowland, in a chapter on Christology explores the implications of Poland declaring Christ as her King.
John Milbank contributes one of the denser essays in this collection on natural law and natural right. Then, in an essay that was a highlight for me, Iain T. Benson writes on subsidiarity. Specifically, the focus on the local from families and neighbors to voluntary association re-centers governance in the face of the rise of various forms of statism and obsession with national politics. To conclude the book, Douglas Farrow argues the importance of eschatology for our teleology. We need to know not only for what we were made but also what the achievement of that end will look like. Our eschatological hope for bodily resurrection shapes all sorts of legal thinking about our bodies now.
Recommendation
In some of our countries, it seems that the only thinking about Christianity and law is trying to have enough power to enact our own moral vision into law. This volume represents a recovery of a deeper form of Christian thinking about how governments are constituted in such ways to support God’s aims for the flourishing of humanity and other creatures. There is good thinking about the relation of human constitutions to higher law, about the ways law directs both to good ends and protects from harm. Nicholas Aroney’s chapter on “Federalism” challenged me to think about why federalism exists, something I hadn’t considered since reading the Federalist papers.
The international team of scholars adds to the richness of this collection, representing every continent. This is an excellent supplemental text for courses in constitutional law and a valuable read for anyone who cares about governance. With only one or two exceptions, the chapters are both substantive and accessible, a tribute to the editorial work on this volume.
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Disclosure of Material Connection: I received a complimentary copy of this book from the publisher for review.

