Matthew 15:10-11

Matthew 15:10-11. And he called the multitude, and said unto them, Hear, and understand: Not that which goeth into the mouth defileth a man; but that which cometh out of the mouth, this defileth a man.

Religion stands not in meats and drinks and divers washings or anything external: it lies in the heart; it is that which comes out of the heart that is the true index of the character, not that which is done externally.