One evening in Church History class the lecture began with this question:  who are you?  It was a good opening; it made me start, it made me pay attention.  It was not the words I expected in that place at that time.  And it was a great question with which to frame the discussion of the early Christian persecutions that followed.  I did not at that time realize the ways in which that question would echo forward through my life.   I certainly did not then nor do I now have as clear an answer as our Gospel reports that John the Baptist offered when asked the same question: This…