I would only add that such variation and argument is human nature. The Bible is our witness to what we believe to be God's actions in history. As anyone who has sat on a jury knows, witnesses to the exact same event can have completely different understandings of what they've seen. If fender-benders can be problematic, how much more so transcendent interventions in history? Our viewpoints and our knowledge are always partial. We can only be more or less certain. That's why we have faith.