The distinction between philosophical theology and philosophy of religion is examined in relation to the role of faith commitments in each, and the notion of doctrinal statements as ‘truth claims’ is examined in terms whether ‘natural theology’ can legitimately be pursued. It is argued that the praeambula fidei version of this pursuit is illegitimate, partly because of the way in which ‘design’ arguments have often been overturned and partly because of the kinds of theological considerations put forward by Thomas Torrance and Alister McGrath. The relevance of Thomas Kuhn’s understanding of the scientific enterprise is also noted, especially in relation to his notion of paradigms.

The distortions of Augustinian and Calvinist approaches to natural theology are noted, and the different approach of Eastern Orthodoxy is examined, especially in relation to the notion of noetic perception in the approach of Gregory of Nyssa and to its application to the contemplation of nature as understood by Maximus the Confessor. More purely ‘philosophical’ considerations are also examined, especially in relation to the ‘weight’ that is assigned to competing arguments. In this context, the concept of noetic perception is applied to the notion of ‘baptized reason’. It is suggested that in relation to the praeambula fidei approach of Thomas Aquinas, even scholastic versions of natural theology may need revision because of nuances in that work that are often unrecognized.