Through a close reading of Thomas Aquinas, this book explores the content, organization, and plausibility of the Divine Law of both the Old and New Testaments, demonstrating its surprising relevance to the modern world. This interdisciplinary, accessible commentary includes thorough explanations, applications to life, and ancillary discussions. 'Professor Budziszewski's commentaries on Aquinas' treatises are a unique resource. He is a friendly and expert guide to Aquinas' text, method and world, putting us at our ease in what can seem a strange landscape, and empowering us to explore it further. He makes everything clear by explaining terms, unpacking arguments, and offering analogies. This commentary fills a long-standing gap, since Aquinas' Treatise on the Divine Law is relatively neglected, yet is essential for understanding his teaching on Natural Law, on legislators' tasks, and on the Spirit's role in Christian life. It is an important part of the reception-history of the Bible. A knowledge of Aquinas' positive attitude towards the Torah can contribute to Jewish Christian dialogue. Budziszewski has done an invaluable service to scholars, students and 'interested amateurs' of many backgrounds and many disciplines.' Richard Conrad, University of Oxford