The heart and the mouth are connected – Jesus knew that and He gave some specific teaching in that regard.
“Every tree is known by the kind of fruit it produces. You won’t find figs on thorny weeds. And you can’t pick grapes from thornbushes! 45 Good people have good things saved in their hearts. That’s why they say good things. But those who are evil have hearts full of evil, and that’s why they say things that are evil. What people say with their mouths comes from what fills their hearts.” Luke 6:44-45 ERV
Listen to your words today. What do they say about you, the real you, the heart of you?
You don’t change your heart but changing what you say. What you say will change when your heart is transformed.
Say with the Psalmist David, “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 19:13-14