faith vs surety

faith

noun
  • A trust or confidence in the intentions or abilities of a person, object, or ideal from prior empirical evidence. 

  • A conviction about abstractions, ideas, or beliefs, without empirical evidence, experience, or observation. 

  • An obligation of loyalty or fidelity and the observance of such an obligation. 

  • A religious or spiritual belief system. 

surety

noun
  • That which makes sure; that which confirms; ground of confidence or security. 

  • A promise to pay a sum of money in the event that another person fails to fulfill an obligation. 

  • One who undertakes to pay money or perform other acts in the event that his principal fails therein. 

  • A substitute; a hostage. 

  • Evidence; confirmation; warrant. 

  • Certainty. 

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