hold on vs insist

hold on

verb
  • To remain loyal. 

  • To grasp or grip firmly. 

  • To persist. 

  • To keep; to store something for someone. 

  • Wait a short while. 

insist

verb
  • To hold up a claim emphatically. 

  • To demand continually that something happen or be done; to reiterate a demand despite requests to abandon it. 

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