tenet vs theology

tenet

noun
  • An opinion, belief, or principle that is held as absolute truth by someone or especially an organization. 

theology

noun
  • A particular belief within a religion. 

  • Synonym of religious studies 

  • Subjective marginal details. 

  • An organized method of interpreting spiritual works and beliefs into practical form. 

  • The study of God, a god, or gods; and of the truthfulness of religion in general. 

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