act of God vs marvel

act of God

noun
  • An unforeseen occurrence beyond one's control, such as a natural disaster. 

  • Used other than figuratively or idiomatically: see act, of, God. 

marvel

noun
  • That which causes wonder; a prodigy; a miracle. 

verb
  • To become filled with wonderment or admiration; to be amazed at something. 

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