10 He then called the crowd together and said, "Listen, and take this to heart. It's not what you swallow that pollutes your life, but what you vomit up." 12 Later his disciples came and told him, "Did you know how upset the Pharisees were when they heard what you said?" 13 Jesus shrugged it off. "Every tree that wasn't planted by my Father in heaven will be pulled up by its roots. Forget them. They are blind men leading blind men. When a blind man leads a blind man, they both end up in the ditch." 15 Peter said, "I don't get it. Put it in plain language." 16 Jesus replied, "You, too? Are you being willfully stupid? Don't you know that anything that is swallowed works its way through the intestines and is finally defecated? But what comes out of the mouth gets its start in the heart. It's from the heart that we vomit up evil arguments, murders, adulteries, fornications, thefts, lies, and cussing. That's what pollutes. Eating or not eating certain foods, washing or not washing your hands - that's neither here nor there."