Mark 7 - NRSV

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,
since it enters, not the heart but the stomach, and goes out into the sewer?” (Thus he declared all foods clean.)
Mark 7:18-19 food body heart
And he said, “It is what comes out of a person that defiles. For it is from within, from the human heart, that evil intentions come: fornication, theft, murder, adultery, avarice, wickedness, deceit, licentiousness, envy, slander, pride, folly. All these evil things come from within, and they defile a person.”
Mark 7:20-23 sin purification temptation