devotion vs idolatry

devotion

noun
  • Feeling of strong or fervent affection; dedication 

  • The act or state of devoting or being devoted. 

  • Religious veneration, zeal, or piety. 

  • A prayer (often found in the plural) 

idolatry

noun
  • The excessive admiration of somebody or something. 

  • The worship of idols. 

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