BAM

"The Roman authorities found the Christians (as they found the Jews) a social and political threat or nuisance, and took action against them. The Christians, meanwhile, do not seem to have taken refuge in the defence that they were merely a private club for the advancement of personal piety. ((which is modern Chty in America!))They continued to proclaim their allegiance to a Christ who was a 'king' in a sense which precluded allegiance to Caesar, even if his kingdom was not to be conceived on the model of Caesar's. This strange belief, so Jewish and yet so non-Jewish (since it led the Christians to defend no city, adhere to no Mosaic code, circumcise no male children) was...a central characteristic of the whole movement, and as such a vital key to its character."

BAM.