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 hath used no deceit in his tongue, nor done evil to his neighbour, and hath not slandered his neighbours.
A fool's lips are ever brawling, and his mouth provoketh unto battle. A fool's mouth is his own destruction, and his lips are the snare for his own soul.
but now I write unto you that ye company not together. If any that is called a brother, be a fornicator, or covetous, or a worshipper of images, either a railer, either a drunkard, or an extortioner: with him that is such see that ye eat not.
neither thieves, neither the covetous, neither drunkards, neither cursed speakers, neither extortioners shall inherit the kingdom of God.
that they speak evil of no man, that they be no fighters, but soft, showing all meekness unto all men.
Backbite not one another, brethren. He that backbiteth his brother, and he that judgeth his brother, backbiteth the law, and judgeth the law: but and if thou judge the law, thou art not an observer of the law: but a judge.