devout vs seraph

devout

adj
  • Devoted to religion or to religious feelings and duties; pious; extremely religious. 

  • Warmly devoted; hearty; sincere; earnest. 

seraph

noun
  • A six-winged angel; one of the highest choir or order of angels in Christian angelology, ranked above cherubim, and below God. They are the 5th-highest order of angels in Jewish angelology. A detailed description can be found at the beginning of Isaiah chapter 6. 

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