righteous vs true-hearted

righteous

adj
  • Moral and virtuous, to the point of sanctimony. 

  • Justified morally. 

  • Free from sin or guilt. 

  • Awesome; great. 

verb
  • To make righteous; specifically, to justify religiously, to absolve from sin. 

true-hearted

adj
  • Having a faithful heart; honest; sincere; not faithless or deceitful. 

How often have the words righteous and true-hearted occurred in a corpus of books? (source: Google Ngram Viewer )