'Speech' in the Bible

Let no corrupt speech proceed out of your mouth, but such as is good for edifying as the need may be, that it may give grace to them that hear.

All bitterness, and rage, and wrath, and clamor, and abusive speech, must be removed from you, together with all wickedness.

Neither should there be vulgar speech, foolish talk, or coarse jesting -- all of which are out of character -- but rather thanksgiving.