I am amazed that so many Christians are fearful (yes, fearful) of thinking for themselves. I could hardly believe the comments which I received in response to my "thought experiment". Is rational thought extinct in the Christian world? I certainly hope not.
"What do the Greeks have to do with the Christian faith?" Odd question, since the apostle Paul was quite familiar with Hellenistic civilization and wrote his epistles in the Greek language. Odd question, since the Socratic method is still used to investigate what is true and what is not true. Odd question, since the very vocabulary of science (and theology!) is freighted with Greek terminology. Western civilization is built upon two pillars: the Judeo-Christian tradition and the Greco-Roman tradition. Pull either one away, and the whole edifice of Western civilization comes crashing down.
Is it sinful to entertain doubts about what we believe? Absolutely not! Does it betray a lack of faith to do so? Just the opposite: without honest doubt there is no genuine faith. Who among us has never had doubts? No one. Truth can often be obtained by exploring unseen paths and new ideas. This is how progress is made in the natural sciences, for example.