Proverbs 4:23
23 Keep your heart with all vigilance,
ofor from it flow the springs of life.
Matthew 12:34–35
34 You lbrood of vipers! How can you speak good, when you are evil? mFor out of the abundance of the heart the mouth speaks. 35 The good person out of his good treasure brings forth good, and the evil person out of his evil treasure brings forth evil.
Luke 6:45
45 The good person out of the good treasure of his heart produces good, and the evil person out of his evil treasure produces evil, for cout of the abundance of the heart his mouth speaks.