George Campbell (1719-1796) has long been regarded as a seminal figure in the development of modern theories of persuasion, but modern students of rhetoric seldom look beyond his Philosophy of Rhetoric to his equally important religious writings. Campbell is portrayed as a secular figure, and his contributions to eighteenth-century Christian apology have been largely forgotten. In his own time, however, Campbell had an international reputation as a champion of the Gospel miracles against the sceptical assaults of the philosopher David Hume and as a respected biblical scholar and authority on...