Rob Yule examines the Ten Commandments in their biblical setting, historical use, contemporary application, continued relevance, and relation to natural law or moral law. Originating in the theophany of Sinai, the Decalogue has a divine origin that distinguishes it from moral codes or legislation of merely human origin. A foundational influence in the formation of Western civilisation, the Ten Commandments have an abiding relevance for personal decision-making, personal and social ethics, human freedom and the moral cohesion of society today.