However, the things proceeding out of the mouth come out of the heart, and those things defile a man.

Matt. 15:14-20.

⁶ If a man’s heart is not right, but is filled with moral badness, then his reasoning will be wholly out of line with that which is decent, upright and righteous. Therefore his thinking ability will be of no benefit to him or to his fellowman. Due to his moral badness his reasoning will be absolutely contrary to the laws of Jehovah. Accordingly, the wise man, in Proverbs 18:7, said: “The mouth of the stupid one is the ruin of him, and his lips are a snare for his soul.” Just as Jesus said, it is not what goes into the mouth that is important, for that is disposed of easily through the digestive organs, but it is what comes out of the mouth, what one says, that shows what the individual really is!