lay down the law
• issue instructions to other people in an authoritative or dogmatic way.
• "I am not attempting to lay down the law, but simply wish to voice my opinion"
Similar:
order someone around,
order someone about,
tell someone what to do,
boss someone about,
boss someone around,
ride roughshod over someone,
be dogmatic,
be domineering,
call the shots,
call the tune,
throw one's weight about,
throw one's weight around,
push someone about,
push someone around,
