bless vs cross one's fingers

bless

verb
  • To esteem or account happy; to felicitate. 

  • To make something holy by religious rite, sanctify. 

  • To make the sign of the cross upon, so as to sanctify. 

  • To invoke divine favor upon. 

  • To honor as holy, glorify; to extol for excellence. 

  • To turn (a reference) into an object. 

intj
  • Used as an expression of endearment, gratitude, or (ironically) belittlement. 

cross one's fingers

verb
  • when wishing for luck, or 

  • when telling a lie (and attempting to escape the moral and other consequence of that lie). 

  • To put the middle finger across the index finger, especially 

How often have the words bless and cross one's fingers occurred in a corpus of books? (source: Google Ngram Viewer )