Everybody is confronted by three fundamental questions, which are of great interest to philosophy and theology: The metaphysical—"What is reality?", the epistemological—"How do we know what we think we know?", and the ethical—"How should we, therefore, live in light of what we know about reality?" Of these three, the epistemological question is of greatest importance, owing to its concern with the justification of knowledge, on the basis of which we can attempt to respond to the rest. This book is motivated by the realization that although everybody attempts to respond to these questions, not everybody provides a valid answer to the questions. In consultation with Carl F. H. Henry, who was a trailblazer for evangelical orthodoxy, this book attempts to provide valid and sound answers to these epistemological and metaphysical questions for millions of Christians, whose answers to these questions continue to be ridiculed by liberals and secularists. This book operates with a realization that since our surest Christian knowledge about the nature and works of God emanates from God’s self-disclosure rather than our human discovery, the Bible, as God’s special revelation occupies an important place in true Christian epistemology. A corollary to the centrality of the Bible to the Christian epistemology is the epistemic sufficiency of human language and reason. This book defines Christian epistemological orthodoxy against such heterodox systems as Kantian phenomenology, Barthian Neoorthodoxy, Ayerian Logical Positivism, and Whiteheadian Process Thought and their respective trajectories. The book is a must-read for philosophy, theology, and apologetic courses.