10 Summoning the crowd, he told them, “Listen and understand: 11 It’s not what goes into the mouth that defiles a person, but what comes out of the mouth—this defiles a person.” 12 Then the disciples came up and told him, “Do you know that the Pharisees took offense when they heard what you said?” 13 He replied, “Every plant that my heavenly Father didn’t plant will be uprooted. 14 Leave them alone! They are blind guides. And if the blind guide the blind, both will fall into a pit.” 15 Then Peter said, “Explain this parable to us.” 16 “Do you still lack understanding?” he asked. 17 “Don’t you realize that whatever goes into the mouth passes into the stomach and is eliminated? 18 But what comes out of the mouth comes from the heart, and this defiles a person. 19 For from the heart come evil thoughts, murders, adulteries, sexual immoralities, thefts, false testimonies, slander. 20 These are the things that defile a person; but eating with unwashed hands does not defile a person.”
Matthew 15:10-20