Reference: Evil Speaking
Hastings
EVIL SPEAKING in the Bible covers sins of untruthfulness as well as of malice. It includes abuse, thoughtless talebearing, imputing of bad motives, slander, and deliberate false witness. Warnings against it are frequent; it is forbidden in the legislation of the OT (Ninth Commandment; De 19:16-19) and of the NT (Mt 5:22; 12:32; 15:19). Christians must expect this form of persecution (Mt 5:11), but must be careful to give no handle to it (Ro 14:16; Tit 2:8; 1Pe 2:12; 3:16).
C. W. Emmet.
See Verses Found in Dictionary
If an unrighteous witness rise up against any man to testify against him of wrong-doing, then both the men, between whom the controversy is, shall stand before Jehovah, before the priests and the judges that shall be in those days; read more. and the judges shall make diligent inquisition: and, behold, if the witness be a false witness, and have testified falsely against his brother; then shall ye do unto him, as he had thought to do unto his brother: so shalt thou put away the evil from the midst of thee.
Blessed are ye when men'shall reproach you, and persecute you, and say all manner of evil against you falsely, for my sake.
but I say unto you, that every one who is angry with his brother shall be in danger of the judgment; and whosoever shall say to his brother, Raca, shall be in danger of the council; and whosoever shall say, Thou fool, shall be in danger of the hell of fire.
And whosoever shall speak a word against the Son of man, it shall be forgiven him; but whosoever shall speak against the Holy Spirit, it shall not be forgiven him, neither in this world, nor in that which is to come.
For out of the heart come forth evil thoughts, murders, adulteries, fornications, thefts, false witness, railings:
sound speech, that cannot be condemned; that he that is of the contrary part may be ashamed, having no evil thing to say of us.