God - Devil

There is a difference. In the case of the Bible, many people witnissed the events. Many people documented, thus the Bible not being written by one author. Most of the events in the Bible are not prophecies for the future, they are actual events that occured. The only prophecies in the Bible are about the return of Christ. People believe in those because the past events are true.

It's not that somebody claimed to turn water to blood, part an ocean, and call down a swarm of bugs. It happened. There were many, many witnesses.