Everyone knows that we are called upon to be holy, but what exactly does "holy" mean and what does "holy" look like? With his trademark candor, J.C. Ryle strips away the gaudy ornamentation that many confuse for holiness and systematically unfolds the true beauty of what it means. Deep, rich, profound, and penetrating, this timeless classic is now available in this unabridged edition and includes a foreword by D. Martyn Lloyd-Jones as well as an exhaustive index of Scripture.