ethics vs righteousness

ethics

noun
  • Morality. 

  • The study of principles relating to right and wrong conduct. 

  • The standards that govern the conduct of a person, especially a member of a profession. 

righteousness

noun
  • A righteous act, or righteous quality. 

  • Holiness; conformity of life to the divine law. 

  • The act or conduct of one who is righteous. 

  • The quality or state of being righteous. 

  • The state of being right with God; justification; the work of Christ, which is the ground justification. 

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