Do Extraordinary Events Require Extraordinary Evidence?

The statement that "extraordinary events require extraordinary evidence" is a gross over-simplification.

It all depends on your prior assumptions and the surrounding ideas that you take into the discussion. If naturalism is true, then miracles are clearly impossible or at least exceedingly unlikely, so it would make sense that any claim of a miracle would constitute a claim that an extraordinary event had happened.

However, there are good reasons to doubt naturalism and there is a reasonable case to be made that a God-like being exists. Furthermore there’s a strong historical basis for Jesus claiming to be divine. Given those things, Jesus’s miracles and resurrection aren’t extraordinary at all- they become highly possible in their own right.

Following on from this, we can take Dr William Lane Craig's basic point that the evidence needs to be considered in the context of the likelihood of other explanations and whether or not the evidence would appear the way it does if another explanation were true. By reviewing the evidence concerning the events surrounding the resurrection, we can see that the various natural explanations seem highly implausible. If we consider the evidence without assuming naturalism, and instead consider it within the context of God probably/maybe existing and Jesus previously making the verbal claim that he possessed divine power then the resurrection appears to be the most likely explanation of the evidence.