► This idiom's origin can be traced back to Cervantes' 'Don Quixote'/Thomas Shelton's 1620 translation of it.
"You are like what is said that the frying-pan said to the kettle, 'Avant, black-browes'."
► In Shakespeare's 'Troilus and Cressida', 1606, a similar quote that said: "The raven chides blackness."