“No miracle has ever taken place under conditions which science can accept.” Renan
Miracles pretty much suffer the same fate. What is a miracle? A miracle is the supernatural violation of the laws of nature. Some of the previous criteria for testing prophecies apply here. A miracle should be unique and be unable to be staged for the amusement of those who don't know much about how the world works. I might mention then that eyewitness accounts of miracles are not the extraordinary evidence required to believe that a miracle has taken place. Would you believe me if I told you I had tiny people living in my air vents and that they every so often would attack me with laser beams? No, because such things are not consistent with the reality we're all familiar with. Moreover, it cannot be shown that a ‘miracle’ has violated a natural law of the universe when not all the laws of the universe are known (or at least not known how exactly they all work together). Reports of miracles may be chalked up to unknown forces and have nothing to do with a god. It seems it would take a miracle for there to actually be any miracles.
Now, I do apologize if it appears I’m nit-picking the subject, but we must do so to ensure we’re not being duped. It's not likely that theists can rule out possibilities other than "God did it" in their quest to believe in prophecies and miracles. What with the simple criteria I've advanced here, no prophecy or miracle stands up to the test. It is exceedingly more possible that prophesies and miracles are merely stories meant to be inspirational (though I don’t see how) or influence the actions of the easily manipulated. [Think David Koresh and the Branch Davidians, or Shoko Asahara and the Supreme Truth Movement, or the Heaven’s Gate/ Halle-Bopp suicide cult, or…] Yet theists cling to these stories as some kind of truth like naïve little children, afraid of the Big Bad Wolf that is reality. Well, reality is not a Big Bad Wolf, it simply is what it is. In that reality the criteria for validating prophecies and miracles are not satisfied. Such is the legacy of theistic belief.