text: precedent, I assume---though I like the synthesis of putting prescient in there...autocorrect?
  
  "Congress shall make no law respecting an establishment of religion..."
  
  It's often by claiming that constitutional protections are eroding or absent that the Constitution is in fact circumvented.  Why does the Catholic Church need double-protection?  The devil is in the details---and laws protecting the Church from the Law are liable to have some devilish ones...