A philosophical analysis of the rationality of the Christian faith and the rationality of science aims at establishing the kind of relationship that should exist between religion and science owing to the human rational capacity as the uniting factor. If the human being is one and that same human being is rational and capable of science and religion, there should be a possibility of a reconciliation of these two domains within his rational capacity. The study takes into consideration the various models of the relationship between science and religion and arrives at the fact that conflicts that seem to arise are always due to lack of intellectual honesty and the failure to accept the limits of one's competence. This is a product of a scientific doctoral research.