Mt 15:17-20

17Do you not realize that everything that enters the mouth passes into the stomach and is expelled into the latrine? 18^h But the things that come out of the mouth come from the heart, and they defile. 19^* For from the heart come evil thoughts, murder, adultery, unchastity, theft, false witness, blasphemy. 20These are what defile a person, but to eat with unwashed hands does not defile.”