put the fear of God into

verb3

1. •
   To cause someone to repent through fear of the wrath of God.
2. •
   To cause someone to fear abjectly in other contexts; to terrify completely.

   • It was the ‘minnie-woffers’ which put the fear of God into them. — 1915
3. •
   To cause someone to obey through fear in other contexts; to terrify into submission.

   • Well, I'll continue to put the fear of God into the troops for as long as I can... but there comes a time... We're nowhere near it yet, of course... — 1990