What comes out of the mouth originates in the heart. Do you find yourself at times saying things that should not be said? Are there thoughts that come to your mind that are wrong and expose an area of darkness in your heart? What goes into the the heart and mind are what is most likely to come out. Commit to daily feeding both your heart and mind with God’s word. Desire to have Him the center of all you do. Try this for 7 days and see if your thoughts and what you say doesn’t change.
Matthew 15:10
And he called the people to him and said to them, “Hear and understand: it is not what goes into the mouth that defiles a person, but what comes out of the mouth; this defiles a person.
“Explain the parable to us.” And he said, “Are you also still without understanding? Do you not see that whatever goes into the mouth passes into the stomach and is expelled? But what comes out of the mouth proceeds from the heart, and this defiles a person. For out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false witness, slander. These are what defile a person.
James 3:8
but no human being can tame the tongue. It is a restless evil, full of deadly poison. With it we bless our Lord and Father, and with it we curse people who are made in the likeness of God. From the same mouth come blessing and cursing. My brothers, these things ought not to be so.
Psalms 140:1
Deliver me, O Lord, from evil men;
preserve me from violent men,
who plan evil things in their heart
and stir up wars continually.
They make their tongue sharp as a serpent’s,
and under their lips is the venom of asps