Sermons preached by clerics have been largely neglected by scholars as a resource for the study of the history of English ecclesiastical law since the Reformation. Needless to say, scholarship has focused on the substantive and procedural ecclesiastical law found in the ecclesiastical legislation of Parliament, the canons passed by the convocations, the case law of the spiritual and temporal courts and the treatises of the civilian commentators. However, some historians of early modern England have studied the sermons delivered at the Inns of Court; but these studies have little to say about their preachers’ portrayal of the ecclesiastical law and its jurisprudence.1 Nevertheless, as we shall demonstrate, in each century since the Reformation, clergy in their preaching commonly treated legal matters or else used legal materials, including ecclesiastical law. The eighteenth century is no exception – and Thomas Sherlock (1678–1761) is an excellent example, whose function included as Master of the Temple (1704–1753) preaching to the common lawyers of Inner and Middle Temple. What follows deals with his life and career, law in his sermons (including jurisprudential concepts common to both the temporal and the spiritual law), and his legal thought in wider context – all at a time when the law was an inescapable part of the religious landscape, the limits on toleration, the constraints on Roman Catholics, and the provision for occasional conformity.2