What does the Bible say?
Proverbs 15:4 A wholesome tongue is a tree of life: but PERVERSENESS therein is a breach in the spirit.
Colossians 3:8 But now ye also put off all these; anger, wrath, malice, blasphemy, FILTHY COMMUNICATION OUT OF YOUR MOUTH.
Titus 2:7-8 In all things shewing thyself a pattern of good works: in doctrine shewing uncorruptness, gravity, sincerity, SOUND SPEECH, that cannot be condemned; that he that is of the contrary part may be ashamed, having no evil thing to say of you.