drive home vs instruct

drive home

verb
  • To emphasize (a point) with tangible or powerful demonstration. 

  • Used other than figuratively or idiomatically: see drive, home. 

  • To push something into position completely by force. 

instruct

verb
  • To tell (someone) what they must or should do. 

  • To teach by giving instructions. 

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