what’s the expression for people who give moralistic lectures, but often are guilty of the same “sin”?

People who give bible-thumping/koran-thumping moralizing lectures about various “sins”, but often indulge in the very same sins they lecture against. For example, many anti-gay preachers often turn out to be gay themselves.

Is there an expression, idiom or figure of speech to describe such people?


A popular idiom for this is the pot calling the kettle black.

From Wikipedia:

The pot calling the kettle black” is a proverbial idiom that may be of Spanish origin of which English versions began to appear in the first half of the 17th century. The idiom is glossed in the original sources as being used of a person who is guilty of the very thing of which they accuse another and is thus an example of psychological projection.

In other words, a gay preacher who preaches against homosexuality is an example of the pot calling the kettle black.

Source : Link , Question Author : Santino , Answer Author : Jason Bassford

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