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
Slandering not with his tongue, not doing evil to his neighbor, lifting up no reproach against his neighbor.
The lips of the foolish one will come into contention, and his mouth will call for blows. The mouth of the foolish is destruction to him, and his lips the snare of his soul.
And now I wrote to you not to mix together, if any called a brother is a fornicator, or covetous, or an idolater, or a railer, or intoxicated, or rapacious; not to eat with such.
Nor thieves; nor covetous, nor intoxicated, nor railers, nor rapacious, shall inherit the kingdom of God.
To slander none, to be without fighting, equitable, showing all meekness to all men.
Speak not against one another, brethren. He speaking against a brother, and judging his brother, speaks against the law, and judges the law: and if thou judge the law, thou art not a doer of the law, but a judge.