The Theology of Holiness is a book by Dougan Clark, first published in 1893. In this systematic theological study, Clark explores the doctrine of entire sanctification, arguing that holiness is not merely an aspirational ideal but an essential, attainable spiritual reality. Drawing deeply from biblical teachings — spanning the patriarchs, the prophets, the life and teachings of Jesus, and the writings of apostles like Paul, Peter, John, and James — he presents a spiritually rigorous, historically rooted framework that insists true Christian life requires active pursuit of sanctification, not passive acceptance. Clark’s work offers both doctrinal clarity and practical application. He contends that holiness is obtained not through moral striving alone but as a gift received by faith, through the transformative power of divine grace and the Holy Spirit. The book serves contemplative readers and seekers of spiritual depth with its blend of structured theological exposition and earnest pastoral appeal—making it a valuable resource for those interested in personal holiness, sanctification theology, spiritual transformation, and Christian practice.
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