free grace vs tenderheartedness

free grace

noun
  • A concept of grace as a gift given freely by God, without regard to entitlement or merit. 

tenderheartedness

noun
  • A tenderhearted deed or attitude. 

  • The characteristic of being tenderhearted. 

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