speak evil of

References in classic literature ?
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
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.