God willing vs touch wood

God willing

intj
  • Barring unforeseen circumstances. 

  • Used to indicate acceptance of God's will when expressing an intention or hope. 

touch wood

intj
  • Hopefully; said while touching something wooden, to avert superstitious bad luck from what has just been said. 

verb
  • To make contact with wood to avert bad luck, in accordance with a folk practice. 

How often have the words God willing and touch wood occurred in a corpus of books? (source: Google Ngram Viewer )