preach to the choir

US /priːtʃ tu ðə kwaɪər/
UK /priːtʃ tu ðə kwaɪər/
"preach to the choir" picture
1.

predicare ai convertiti, portare acqua al proprio mulino

to try to persuade people to believe things that they already believe

:
When I talk about the importance of environmental protection to this group, I feel like I'm preaching to the choir.
Quando parlo dell'importanza della protezione ambientale a questo gruppo, mi sento come se stessi predicando ai convertiti.
You don't need to convince me; you're preaching to the choir.
Non hai bisogno di convincermi; stai predicando ai convertiti.