prophecy vs warning

prophecy

noun
  • A prediction, especially one made by a prophet or under divine inspiration. 

  • The public interpretation of Scripture. 

warning

noun
  • Something spoken or written that is intended to warn. 

  • The action of the verb warn; an instance of warning someone. 

intj
  • Used to warn of danger in signs and notices. 

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