Words are powerful! God used words to create the world? He spoke and everything was created. While we are not God, our words are also powerful.
The tongue can bring life or death - Proverbs 18a
Jesus, God in the flesh, emphasized the power of His words.
The Spirit alone gives life. Human effort accomplishes nothing. And the very WORDS I have spoken to you are spirit and life. John 6:63
The bible clearly instructs us to guard our heart because words come from the heart.
A good person produces good things from the treasury of a good heart, and an evil person produces evil things from the treasury of an evil heart. What you say flows from what is in your heart. Luke 6:45 New Living Translation
Guard your heart above all else for it determines the course of your life. Proverbs 4:23.
The mouth automatically speaks what is in the heart. Most of us try to have a filter on our words yet during the unguarded moment, our mouth speaks what is in the heart.
While we should guard our tongue, Fort Knox is our heart. Let me encourage you to guard your heart today.
Now let the words of my mouth and the meditation of my heart be acceptable in thy sight, O Lord, My Strength and My Redeemer.