One of the ‘borderlands’ of theology is the area in which it concerns overlap with those of philosophy. This book charts some of the frontiers that are of most concern in contemporary discussion. Beginning with a study of ontology in the New Testament, it proceeds to consider the borderlands between theology and philosophy from different standpoints in four main groups: the apostolic and patristic age, Enlightenment and post-Enlightenment thought, morality and ethics and, finally, contemporary reflection about meaning and truth. This distinguished collection of essays has been produced to honour Donald McKinnon, who retired from the Norris-Hulse Professorship of Divinity in the University of Cambridge in 1978, a bibliography of whose published writings is included in the volume.