Preach to the converted

Pro Tip 1/3

Common Usage

Often used when someone insists on a point that everyone already agrees with or understands.

When the teacher kept explaining the rule, a student said, 'You're preaching to the converted.'

Pro Tip 2/3

Conversational Tone

Mainly used in casual or informal conversations, not in formal writing.

At the family dinner, Uncle Joe was preaching to the converted about the benefits of organic food.

Pro Tip 3/3

Slight Frustration

Can express mild irritation or frustration at having to hear something already accepted.

We all recycle here; you're preaching to the converted.