Christian Ethics: A Very Short Introduction, and: Christian Ethics: A Brief History, and: Behaving in Public: How to Do Christian Ethics (review)

In calling ethics “Christian,” the question of distinctiveness, or the normative force of theological claims, inevitably arises. Three new books explore what Christian ethics looks like if it is to take seriously its theological basis for engaging the world.

Stephen D. Long, professor of systematic theology at Marquette University, attends to the difficulties in predicating “Christian” of “ethics,” yet he is concerned more with explaining how Christianity can be ethical rather than vice versa. His Christian Ethics: A Very Short Introduction opens with a quote from Christopher Hitchens and later dedicates almost an entire chapter to analyzing the failures of Christian ethics. From the Crusades to colonialism, the Galileo affair to slavery, Long provocatively asks whether modern ethics emerges as a result of the failure of Christian moral claims. While not sidestepping the difficulties in Christian history, Long is careful to note how this history is often distorted to serve the goals of contemporary secular politics, goals which he points out have resulted in the bloody failures of the twentieth century. Perhaps a renewed interest in Christian ethics, Long notes, is a result of the failures of secularism.

Long manages to cover a surprising breadth of material in his brief book, from a sweeping historical overview of Christian theology to a final chapter on the practical matters of sex, money, and political power. Long also summarizes some important theological differences among Christians that lead to practical disagreements about the nature of Christian ethics. His overview of the Catholic-Lutheran convergence on matters of faith and works is particularly helpful in establishing the theological basis for an ecumenical Christian ethics. This historical survey serves to illustrate that ethics is both an integral part of and a contradiction to Christianity. Still, argues Long, while Christianity may claim to be more than ethical, it may never claim to be less.

While commendable in breadth, the genre of the “very short introduction” precludes depth and must necessarily omit important information. In his summary of Catholic ethics, for example, Long addresses nominalism and probabilism but omits the Catholic social tradition, a particularly glaring omission given his topic. In the end, the target audience is the educated and curious layperson, more suitable for a church group than a classroom, though this is reflective of the nature of “the very short introduction” series and does not indicate any limitation in Long’s skill as a scholar.

In the spirit of brevity, Michael Banner, Fellow of Trinity College in Cambridge, offers Christian Ethics: A Brief History, which, like any brief history, paints with broad and admittedly selective strokes. The aim of this work is not to evaluate the normative value of Christian claims but rather to establish the ethical implications of Christian belief. Unlike Long, who directly addresses the ethical failures of the church, Banner is more apologetic. In clarifying the difficulties of writing a text such as this one, he observes that Christian history has not been guided by texts as much as by action. In this vein, Banner begins not chronologically but with the Rule of St. Benedict and its call to live in a relationship with God and neighbor characterized by love.

Banner grounds the theoretical dimension of Christian ethics in this emphasis on practice. Given the way of life Christians are called to, what are its limitations and possibilities? Banner turns to Augustine’s notion of the weakness of the will and the human creature’s need for grace, which he then places in creative tension with Aquinas’s emphasis on the harmony between faith and reason. In somewhat breathtaking conciseness, Banner describes how the Scholastic emphasis on natural law, casuistry, and the categorizing of sins led to what he calls...