gospel vs theology

gospel

noun
  • The teaching of Divine grace as distinguished from the Law or Divine commandments. 

  • An account of those aspects of Jesus' life, generally written during the first several centuries of the Common Era. 

  • A message expected to have positive reception or effect, one promoted as offering important (or even infallible) guiding principles. 

  • The first section of the Christian New Testament scripture, comprising the books of Matthew, Mark, Luke and John, concerned with the birth, ministry, passion, and resurrection of Jesus. 

  • That which is absolutely authoritative (definitive). 

  • Gospel music. 

verb
  • To instruct in, declare, or communicate the gospel; to evangelise. 

theology

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

  • Synonym of religious studies 

  • Subjective marginal details. 

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

  • A particular belief within a religion. 

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