John Owen was a leading Puritan theologian, an advisor to Oliver Cromwell, and vice-chancellor of the University of Oxford. He was a prolific author, and his theological writings on the atonement and the work of the Holy Spirit still influence the English-speaking Calvinist world today. Sebastian Rehnman here provides a detailed analysis of the fundamentals of Owen's theolgoy by exploring his underlying principles and premises. Rehnman shows that Owen was in direct continuity with other Renaissance scholars, late medieval thinkers, the Reformation, and post-Reformation theologians. The theology of Owen, says Rehnman, must be understood within the context of a largely unbroken line of the Christian tradition.