13. He answered, Every plant which My heavenly Father has not planted will be torn up by the roots. [Isa. 60:21.]
14. Let them alone and disregard them; they are blind guides and teachers. And if a blind man leads a blind man, both will fall into a ditch.
15. But Peter said to Him, Explain this proverb (this maxim) to us.
16. And He said, Are you also even yet dull and ignorant [without understanding and unable to put things together]?
17. Do you not see and understand that whatever goes into the mouth passes into the abdomen and so passes on into the place where discharges are deposited?
18. But whatever comes out of the mouth comes from the heart, and this is what makes a man unclean and defiles [him].
19. For out of the heart come evil thoughts (reasonings and disputings and designs) such as murder, adultery, sexual vice, theft, false witnessing, slander, and irreverent speech.