favor vs manna

favor

noun
  • Goodwill; benevolent regard. 

  • A small gift; a party favor. 

  • Mildness or mitigation of punishment; lenity. 

  • A kind or helpful deed; an instance of voluntarily assisting (someone). 

  • Partiality; bias 

  • The object of regard; person or thing favoured. 

verb
  • To resemble; especially, to look like (another person). 

  • To do a favor [noun sense 1] for; to show beneficence toward. 

  • To look upon fondly; to prefer. 

  • To use more often. 

  • To encourage, conduce to 

  • To treat with care. 

manna

noun
  • Any boon which comes into one's hands by good luck. 

  • Food miraculously produced for the Israelites in the desert in the book of Exodus. 

  • The sugary sap of the manna gum tree which oozes out from holes drilled by insects and falls to the ground around the tree.http://www.museum.vic.gov.au/forest/plants/gum.html 

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