Proverbs 18:21 AMPC
Death and life are in the power of the tongue, and they who indulge in it shall eat the fruit of it [for death or life].

God gave us a mouth, not only to eat but as a weapon, especially for issuing spiritual edicts, and declaring the word of God over things. Matthew 15:11 says it’s not what goes into our mouths but what comes out of it that defiles man, that being the case, many people have caused damage and death by a false or injurious tongue.
your mouth is made for so much more, it is made to glorify God and to speak into life and situations through meditation.
Our words are so powerful that they can cause a change in our lives and over situations. That means we must be careful of our daily confessions.
What words are you saying? What are you confessing? Death and life or, evil and good.
When you believe in God, His word becomes easily accessible to you and must be part of your confession according to Romans 10:8.
Salvation is based on your tongue according to Romans 10:9, and we must continue to confess the Lordship of Jesus over our lives through our confession. We believe with our hearts but must continuously speak our confessions to affect situations.
Your tongue is your future, it is the director of your lie and destiny, and we may lose out on certain things due to the confessions of our mouths. The word of God and our confession are meant to uplift and move us higher but only if we consistently use our mouths to align that word to our lives.
We must get the word of God started in us and release it consistently and daily into our lives through our speech, remember that we get what we speak, our lives today are the result of what we spoke yesterday, we therefore must declare the right words always according to Proverbs 15:4.
Proverbs 3:18 calls wisdom a tree of life whose fruit preserves life and gives blessing to the righteous. So, if God’s word is stored inside us, we must make a daily habit of releasing those words over every area of our lives and into every situation and atmosphere.
There is no relief in the heart because the enemy typically hates our joy, peace, and freedom, he, therefore, uses our words and confessions to lead us where he wants us and then gloats over our misfortunes according to Psalm 13:2.
Use your mouth wisely! Our language, communication and confession should be without corruption— Christians should avoid corruptive speech. We must speak in ways that are good to build us and others up and gives grace, that is, confessions and communication that are godly and edifying as seen in Ephesians 4:29.
A good way of escaping temptation is to be slow to speak authoritatively as in James 1:19: slow also to speak such hasty things of God, as in James 1:13. Slow to speak echoes Proverbs on the misuse of speech and the anger that can result. Christians should not only be slow to anger but negativity, evil, condemnation, unbelief, and ungodliness.
As a believer, use your mouth to speak wisdom and righteousness, speak what you want to see, and express the Father’s instructions and counsel already in your heart as declared in Psalm 37:30-31.
Use your mouth to reframe your world.
Shalom