article of faith vs conviction

article of faith

noun
  • A thing that is believed as a matter of faith. 

conviction

noun
  • A firmly held belief. 

  • A judgement of guilt in a court of law. 

  • The state of being wholly convinced. 

  • The state of being found or proved guilty. 

How often have the words article of faith and conviction occurred in a corpus of books? (source: Google Ngram Viewer )