Matthew 15:11, 17-19

What goes into someone’s mouth does not defile them, but what comes out of their mouth, that is what defiles them.”

“Don’t you see that whatever enters the mouth goes into the stomach and then out of the body? But the things that come out of a person’s mouth come from the heart, and these defile them. For out of the heart come evil thoughts—murder, adultery, sexual immorality, theft, false testimony, slander.