Words will either bring life or death to you, but the decision is all yours.
Proverbs 18:21 in the Message Bible says:
“Words kill, words give life; they’re either poison or fruit—you choose.”
When you change how you think and what you speak using the Word of God, then you will never have to worry about saying things you shouldn’t.
From RichThoughts for Breakfast, Volume 2, by Harold Herring, pp 11-12