speak evil

See: defame
References in classic literature ?
The best treasure a man can have is a sparing tongue, and the greatest pleasure, one that moves orderly; for if you speak evil, you yourself will soon be worse spoken of.
Thee mustn't speak evil of thy rulers, Simeon," said his father, gravely.
O whoreson scoundrel, how ungrateful you are, you see yourself raised from the dust of the earth to be a titled lord, and the return you make for so great a benefit is to speak evil of her who has conferred it upon you
What made him particularly detested was the great aversion he had to Khacan, of whom he never ceased to speak evil to the king.
If we will think about it, those who continue the hate crime, speak evil of others, condemn gay people, rejoice over the mourning of those who lost loved ones in this tragic event, also got killed, and they are not aware of their deaths.
Maybe, he didn't take the advice seriously because when it came there was no electronic media and man did not have to see evil, hear evil or speak evil on the idiot box.
The 'Keeping Up With The Kardashian' star had recently posted a selfie on the social networking site with a caption that read that one should neither see evil, hear evil nor speak evil.
One of the monkeys puts its hand on his mouth, signifying that we should not speak evil.
Be an upright person, a just and true person, a patient and kind person, a person content with life, a person who can rejoice and not speak evil.
Those who have the least will have the best chance to flourish in an environment free from daily assault by employers and occupying forces, neighbors and those who speak evil of them.
He went on: "You speak evil about Osama because it suits you, your country and its political ambitions.
Across the country, both before and after Santana, similar warning signs--ranging from menacing e-mails to bomb diagrams to guns at school--have come to light before they turned into deadly disasters (see "See Evil, Hear Evil, Speak Evil," News and Trends, 3/19/01).