A Reasonable Belief: Why God and Faith Make Sense by William Greenway (review)

This book offers an apology for the reasonableness of Christian belief in the God of love and the gift of God in Jesus, agape, against its secular detractors from early modern philosophy to the late twentieth century. Intentionally apologetic in tone, the argument moves from old-school Evangelical kinds of defenses that characterized early 1970s apologetic revivals by thinkers like Josh McDowell and his "evidences demanding a verdict" or Francis Schaeffer's The God Who Is There and Escape from Reason. Greenway, however, incrementally shifts from defense language to affirmation of the face, agape, and the gift. He discloses a philosophical spirituality embodied in Christian belief in the ethical realities of freedom, obligations, justice, and love.

The book illustrates how these spiritual realities feed back into Christian substantive beliefs through expositions of scripture and doctrine, especially the parables and life of Jesus. Greenway brings insightful readings of Emmanuel Lévinas and Jean-Luc Marion to bear on these sources. What begins as a strictly philosophical defense of Christian belief movingly invites readers to travel from apologetics, evidences, and warrants to the spiritual sphere where Christians and non-Christians alike may reasonably affirm the priority of agape love. "Agape names the reality of our having been seized in and by love for others," Greenway argues (xiii).

This book insightfully and passionately presents the complexities of faith and life in the world of face-to-face human encounters and our planetary ecological and environmental interactions with nonhuman others. Greenway's relational phenomenology provides an ethical pattern for human-to-human reception of divine agape, the gift, which is available to all in our moral struggles with a pluralism of faiths, even as Christians seek to demonstrate the ethical demands of agape, love, which, according to Greenway, is the spiritual essence of the Gospel.

Part I, "The Secular Condition" (chapters 1–4), is classically apologetic in tone, mapping the philosophical skeptical terrain where reason and science rob Christian belief in God of any noetic validity. The Cartesian and Darwinian revolutions hold center in the production of the "secular" dismissal of reasonable belief in God, spiritual realities, and what ethical powers they bear on human face-to-face encounters with God. Part II, "The Essence of Reasonable Christianity" (chapters 5–9), draws on the French phenomenology of Lévinas and Marion to restore, Greenway argues, a "spiritually attuned rationality, an awakened rationality that facilitates the unfolding of a philosophical spirituality" that considers "classic teachings of Jesus in light of this restored rationality, expecting that dimensions of Jesus' spiritual genius will shine forth with renewed brilliance" (xiii). Greenway contends that these renewed spiritual insights, informed by agape, the gift, yield spiritual understanding and appreciation of formidable Christian belief schemes: original sin, the fall, good, evil, grace, forgiveness, koinonia, salvation, faith, eternal life, and resurrection (xiii).

Greenway describes his goal as a constructive philosophical spirituality. "The essence of this philosophical spirituality," Greenway argues, "is continuous with the essence of Christian spirituality," when articulated in an explicitly (although non-exclusivist) Christian voice and in accord with "common public standards of what is good and reasonable" (xiii). He concludes, "love is not something we create or do, but awakening and surrendering to that love in and by which we have been seized" (xiii). A Reasonable Belief offers a rigorous and creative engagement of modern and contemporary continental philosophy and science with Christian love ethics that seeks to restore its centrality in our postmodern moment.