This has become a daily practice of mine. Each day, before I even get out of bed, I have to purpose in my heart that I will use my mouth in the right way. I won't eat the things I shouldn't eat. I won't say the things I shouldn't say. It's a choice, and I have to remind myself of that choice all day long.
Our mouths were made for good things, but too often we use them to abuse and tear down ourselves and others. Is it any wonder so many of us are anxious and depressed? With negative talk like that flying around all the time, it's only natural that the result would be negative feelings.
If you're struggling with anxiety and depression, I urge you to take this verse to heart. Purpose that you will only use your mouth for good things like praising God, edifying saints, witnessing to the lost and building one another up.
Here are a few other verses about using our mouths with purpose:
Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers. - Ephesians 4:29
Whoso keepeth his mouth and his tongue keepeth his soul from troubles. - Proverbs 21:23
Set a watch, O Lord, before my mouth; keep the door of my lips. - Psalm 141:3
My lips shall utter praise, when thou hast taught me thy statutes. My tongue shall speak of thy word: for all thy commandments are righteousness. - Psalm 119:171-172
Let the words of my mouth, and the meditation of my heart, be acceptable in thy sight, O Lord, my strength, and my redeemer. - Psalm 19:14