Idiom Breakdown

preach to the choir

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Definition

To speak as if to convince a person or group of something they already believe.

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In Context

"Jay Branegan says each side will be preaching to the choir. "Democrats will make the argument that's been successful with their base […] [that] Republicans are merely helping the rich.""
"It hardly needs saying that converting a Tory in a swingable “blue wall” constituency is electorally far more valuable than preaching to the choir in a Labour stronghold."

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Also Said As

preach to the converted
preach to the congregation

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See Also