This text has originally been written as a master thesis in philosophy at the Faculty of Philosophy, Erasmus University Rotterdam, The Netherlands. The thesis was written under the supervision of Prof.dr. Ger Groot and Prof.dr. Roel Kuiper, with support of Dr. Henri Krop. Because of size limitations some material was excluded in the original version. In the current version this material has been included. Also some grammatical corrections have been made. Although my thought on some points has developed since, the (...) text still represents my thought at that moment. This text has been translated into Dutch, and is currently being edited and extended. It will be separately published as a book by Buijten & Schipperheijn publishers in the Verantwoording-series of the Association for Reformational Philosophy. The publication is scheduled in the end of 2011 or early 2012. Maybe an English version will follow. We will see. Special thanks to prof. Alvin Plantinga, prof. Richard Mouw, prof. Andries Raath, prof. Jaap Klapwijk, prof. René van Woudenberg and the Association for Reformational Philosophy for kindly making available relevant materials. Rotterdam, April 2011, Bas Hengstmengel. (shrink)