Mark 7:17-22 New Revised Standard Version (NRSV)
17 When he had left the crowd and entered the house, his disciples asked him about the parable. 18 He said to them, “Then do you also fail to understand? Do you not see that whatever goes into a person from outside cannot defile, 19 since it enters, not the heart but the stomach, and goes out into the sewer?” (Thus he declared all foods clean.) 20 And he said, “It is what comes out of a person that defiles. 21 For it is from within, from the human heart, that evil intentions come: fornication, theft, murder, 22 adultery, avarice, wickedness, deceit, licentiousness, envy, slander, pride, folly.