It is easy to invent stories that describe miracles or revelations that took place before a single person or a small group of people gathered who witnessed the event. If a charismatic person or a group of his followers comes and tells of a revelation and miracles they have witnessed, they can convince the rest of the people to believe them, for who can deny their words? Therefore, even such traditions are unreliable, as they can be easily fabricated.
Second, even if the event in question did occur, it may not be a miracle but an illusion, hallucination, delusion, or some other type of untruth.
Biblical, or Jewish tradition, on the other hand, describes events that took place before the entire People of Israel, six hundred thousand men besides women and children. As noted above, it is very difficult to convince an entire nation that such events have occurred if one had not heard of them from his Biblical ancestors. Also, the mass and prolonged nature of revelation preclude the possibility that it is an illusion or deception – it is easy to deceive individuals, but it is difficult to deceive an entire people, and certainly, it cannot be done over a long period of time and in the way the Bible describes.