Proverbs 16:23
The heart of the wise man is the teacher of his mouth, and gives increased learning to his lips.
Proverbs 15:28
The heart of the upright gives thought to his answer; but from the mouth of the evil-doer comes a stream of evil things.
Psalm 37:30-31
The mouth of the good man says words of wisdom; the talk of his tongue is of righteousness.
Psalm 45:1
My heart is flowing over with good things; my words are of that which I have made for a king; my tongue is the pen of a ready writer.
Proverbs 22:17-18
Let your ear be bent down for hearing my words, and let your heart give thought to knowledge.
Matthew 12:34-35
You offspring of snakes, how are you, being evil, able to say good things? because out of the heart's store come the words of the mouth.
Colossians 3:16
Let the word of Christ be in you in all wealth of wisdom; teaching and helping one another with songs of praise and holy words, making melody to God with grace in your hearts.