Abstract
Reformed epistemologists hold that belief in God can be rational and warranted apart from being based on any other propositions. The facts of religiousdiversity, however, are seen by many to pose a challenge to this view. In the first part of this paper I suggest some developments of Plantinga’s account of environment, proper function, and the kinds of faculties involved in the production of warranted belief. In the second part I develop a reformed response to “the Epistemological Challenge of Diversity,” with a particular focus on the “best explanation” aspect of the pluralistic challenge and the role of environment and character in a non-pluralist explanation of the facts of diversity. In the final section I address some objections.