Deductive vs. Inductive reasoning and how each applies to a religious belief is a fascinating subject. When one testifies that religion primarily involves deductive reasoning where conclusions are preconceived and based on faith, and are therefore beyond proof. While scientific inquiry is primarily skeptical. Scientifically derived conclusions are by nature subject to change as new facts and observations either validate or disprove them. Scientifically derived conclusions are verifiable and testable, thus scientific inquiry primarily utilizes inductive reasoning, as a method for describing and defining order in the universe. When one looks at the categorization in this narrow scope the answer might remain. However when one step's back and scrutinizes the religious faith that one believes in, then religious faith undergoes some of the same testing policies for truth that scientific analysis undergoes.
Every scrutinizing person of faith will question their belief. I know no person of religious faith that hasn't or doesn't explore the possibilities of the infallibility of their dedication to the ideals surrounding their religious belief.
But even though they really do not know for a certainty beyond question they stay dedicated to there ideals. Like the scientist in his/her laboratory searching for answers and researching those same questions, until through a process of repetitive findings they come to a conclusion of to answers that eluded them. Does the scientist know to a 100% that he/ she are correct in their findings?
The person of faith undergoes that same search for the truth to answers of the heart of morality, questions of faith in a higher being. However the research a person of religious faith undergoes is are more constant in nature and of a higher personal cost. While a scientist can research an idea for hours, days, weeks, perhaps years if they are dedicated to the pursuits...