Matthew 15:15

Then the disciples came and said to him, “Do you know that the Pharisees were offended when they heard this saying?”

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.”

So Jesus said, “Do you also still not understand?

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.