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 a false witness testifies against another person and accuses him of a crime, then both parties to the controversy must stand before the Lord, that is, before the priests and judges who will be in office in those days. read more. The judges will thoroughly investigate the matter, and if the witness should prove to be false and to have given false testimony against the accused, you must do to him what he had intended to do to the accused. In this way you will purge evil from among you.
"Blessed are you when people insult you and persecute you and say all kinds of evil things about you falsely on account of me.
But I say to you that anyone who is angry with a brother will be subjected to judgment. And whoever insults a brother will be brought before the council, and whoever says 'Fool' will be sent to fiery hell.
Whoever speaks a word against the Son of Man will be forgiven. But whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come.
For out of the heart come evil ideas, murder, adultery, sexual immorality, theft, false testimony, slander.
and a sound message that cannot be criticized, so that any opponent will be at a loss, because he has nothing evil to say about us.