Matthew 15:16

But he answered, “Every plant which my heavenly Father didn’t plant will be uprooted.

Leave them alone. They are blind guides of the blind. If the blind guide the blind, both will fall into a pit.”

Peter answered him, “Explain the parable to us.”

Don’t you understand that whatever goes into the mouth passes into the belly and then out of the body?

But the things which proceed out of the mouth come out of the heart, and they defile the man.

For out of the heart come evil thoughts, murders, adulteries, sexual sins, thefts, false testimony, and blasphemies.