Knowledge and Christian Belief

In Knowledge and Christian Belief, Alvin Plantinga presents a condensed and accessible version of his influential epistemological defense of Christian faith, originally developed in his Warranted Christian Belief (2000). This work stands as a significant contribution to reformed epistemology, a movement Plantinga helped establish alongside Nicholas Wolterstorff and William Alston. The monograph addresses the fundamental question of whether Christian belief can constitute genuine knowledge, defending an affirmative answer against various skeptical challenges.

Plantinga's central argument revolves around his theory of warrant—that property which distinguishes mere true belief from knowledge. He contends that beliefs produced by properly functioning cognitive faculties in appropriate environments according to a design plan aimed at truth possess warrant. Applying this framework to religious belief, Plantinga argues that if Christianity is true, then Christian beliefs formed through what Calvin called the sensus divinitatis (sense of divinity) and the internal instigation of the Holy Spirit can indeed constitute warranted belief and thus knowledge.

The work systematically engages major objections to the rationality of Christian belief. Plantinga addresses the Freudian and Marxian critiques that religious belief stems from wish-fulfillment or false consciousness, arguing these objections assume the falsehood of theism rather than demonstrating it. He examines the problem of religious diversity and pluralism, contending that mere disagreement does not undermine warrant. The monograph also tackles historical biblical criticism, arguing that it does not provide defeaters for Christian belief when properly understood.

A crucial feature of Plantinga's approach is his rejection of classical foundationalism and evidentialism, which demand that religious beliefs be based on evidence or argument to be rational. Instead, he defends the position that Christian beliefs can be properly basic—rationally held without being based on other beliefs or evidence. This move fundamentally challenges Enlightenment assumptions about religious epistemology that have dominated Western philosophy since Locke and Hume.

The significance of this work lies in its rigorous philosophical defense of the intellectual respectability of Christian belief. By arguing that the rationality of Christian belief depends on its truth rather than prior philosophical argumentation, Plantinga shifts the burden of proof in debates about religious knowledge. His work has profoundly influenced contemporary philosophy of religion, spawning extensive discussion about the relationship between epistemology and theology while providing sophisticated tools for those defending the rationality of religious commitment.