good news vs word of God

good news

noun
  • The message of Jesus concerning the salvation of the faithful (as elaborated in the Gospels) 

  • Something or someone pleasant, fortunate, or otherwise positive. 

word of God

noun
  • A message from God, or a manifestation of his will 

  • the Scriptures, especially when interpreted as the work of God rather than man 

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