Reference: Evil-speaking
Easton
is expressly forbidden (Tit 3:2; Jas 4:11), and severe punishments are denounced against it (1Co 5:11; 6:10). It is spoken of also with abhorrence (Ps 15:3; Pr 18:6-7), and is foreign to the whole Christian character and the example of Christ.
See Verses Found in Dictionary
He that slandereth not with his tongue, doeth not evil to his companion, nor taketh up a reproach against his neighbour;
A fool's lips enter into contention, and his mouth calleth for stripes. A fool's mouth is destruction to him, and his lips are a snare to his soul.
But now I have written to you, if any one called brother be fornicator, or avaricious, or idolater, or abusive, or a drunkard, or rapacious, not to mix with him; with such a one not even to eat.
nor thieves, nor covetous, nor drunkards, nor abusive persons, nor the rapacious, shall inherit the kingdom of God.
to speak evil of no one, not to be contentious, to be mild, shewing all meekness towards all men.
Speak not against one another, brethren. He that speaks against his brother, or judges his brother, speaks against the law and judges the law. But if thou judgest the law, thou art not doer of the law, but judge.