John's Gospel records Jesus as having told His mother to "behold her son" and John to "behold his mother."  Many Church Fathers and other commentators say that Jesus was acting as a good son in taking care of His mother before He died.  But is this really the case?  Do John's words mean something different?  Why did Jesus call Mary "Woman," and not "Mother?"  Is there an echo to Cana?  To Genesis?  If so, what does that tell us about the relationship between John and Mary and who they represent?  (The last in a four-part series on "The Women at the Cross.")