preach to the choir(redirected from preached to the choir)
preach to the choir
To try to convince someone about something that they already support or understand. You're preaching to the choir here—we all have kids and understand how busy life with kids is.
preach to the choirand preach to the converted
Fig. to make one's case primarily to one's supporters; to make one's case only to those people who are present or who are already friendly to the issues. There is no need to convince us of the value of hard work. We already know that. You are just preaching to the choir. Don't waste your time telling us about the problem. That's preaching to the choir. Bob found himself preaching to the converted when he was telling Jane the advantages of living in the suburbs. She already hates city life.