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 a man to accuse him of trespass: then let both the men which strive together stand before the LORD, before the priests and the judges which shall be in those days, read more. and let the judges enquire a good. And if the witness be found false and that he hath given false witness against his brother, then shall ye do unto him as he had thought to do unto his brother, and so thou shalt put evil away from thee.
Blessed are ye when men shall revile you, and persecute you, and shall falsely say all manner of evil sayings against you for my sake.
But I say unto you, Whosoever is angry with his brother shall be in danger of judgment: whosoever sayeth unto his brother, 'Raca,' shall be in danger of a council: but whosoever sayeth, 'Thou fool,' shall be in danger of hell fire.
And whosoever speaketh a word against the son of man, it shall be forgiven him: but whosoever speaketh against the holy ghost, it shall not be forgiven him: no, neither in this world, neither in the world to come.
For out of the heart come evil thoughts, murder, breaking of wedlock, whoredom, theft, false witness-bearing, blasphemy.
and with the wholesome word which cannot be rebuked, that he which withstandeth may be ashamed, having no thing in you that he may dispraise.