English Reference

Idiom

a wolf in sheep's clothing

Meaning

A dangerous or hostile person who hides behind a harmless, friendly appearance.

Examples

“He seemed friendly, but he was a wolf in sheep's clothing.”

“The charity turned out to be a wolf in sheep's clothing, pocketing most of the donations it collected.”

“The new investor arrived full of warm reassurances, a wolf in sheep's clothing whose real plan was to strip the company for parts and sell the name.”

Examples

simple

“He seemed friendly, but he was a wolf in sheep's clothing.”

contextual

“The charity turned out to be a wolf in sheep's clothing, pocketing most of the donations it collected.”

complex

“The new investor arrived full of warm reassurances, a wolf in sheep's clothing whose real plan was to strip the company for parts and sell the name.”

Origin

The phrase comes from the Sermon on the Mount, in Matthew 7:15, where Jesus warns his listeners: "Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves." The warning is about deceit — spiritual predators disguised as members of the flock.

The image works because a sheep is the very picture of harmlessness, and a wolf its natural killer. To wear the one while being the other is to hide a threat behind the most reassuring possible face. A similar figure appears in Aesop's fables, but it is the Gospel wording that fixed the phrase in English.

Today a wolf in sheep's clothing is anyone who presents a gentle, trustworthy exterior to mask hostile intent — a con artist with an honest smile, or a rival who plays the friend while working against you.

Stories

The Life & Teachings of Jesus · See all Biblical origin

The Gospels and the Sermon on the Mount.

the salt of the earth — Good, honest, dependable people who lack pretension.

cast the first stone — To act self-righteously in accusing another person, believing oneself to be blameless.

go the extra mile — To make an extra effort; to do a particularly good job.

turn the other cheek — To accept punishment or injury without retaliating.

the blind leading the blind — A situation in which someone incompetent is guiding others who are equally incompetent.

the eye of a needle — A standard for something so difficult it is all but impossible to pass or achieve.

This entry

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C1 · Advanced
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English Reference