Cast the first stone

Meaning

Be the first to criticize, only if you are faultless.

Usage

Used to caution against hypocritical judgment.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Story from the Gospel of John about sinless judging.

Referenced in sermons and advice for centuries.