Paul's 500 witnesses.

[John V]

You might want try reading Catholic scholars, such as the late Father Raymond Brown, Father John Meier, etc.  In fact, you'll find a lot of believing scholars, both Protestant and Catholic, who do not take the "500" at face value.  You can start here for some critical (yet, believing) scholarship:

http://www.usccb.org/bible/1corinthians/15

OK, what part of that page says that the 500 is not to be taken at face value?