Glossa Ordinaria
Catena Aurea · Markusevangelium 7
And when he had called all the people unto him, he said unto them, Hearken unto me every one of you, and understand: There is nothing from without a man, that entering into him can defile him: but the things which come out of him, those are they that defile the man. If any man have ears to hear, let him hear. And when he was entered into the house from the people, his disciples asked him concerning the parable. And he saith unto them, Are ye so without understanding also? Do ye not perceive, that whatsoever thing from without entereth into the man, it cannot defile him; Because it entereth not into his heart, but into the belly, and goeth out into the draught, purging all meats? And he said, That which cometh out of the man, that defileth the man. For from within, out of the heart of men, proceed evil thoughts, adulteries, fornications, murders, Thefts, covetousness, wickedness, deceit, lasciviousness, an evil eye, blasphemy, pride, foolishness: All these evil things come from within, and defile the man.
a It says therefore into his heart, that is, into his mind, which is the principal part of his soul, on which his whole life depends; wherefore it is necessary, that according to the state of his heart a man should be called clean or unclean, and thus whatsoever does not reach the soul, cannot bring pollution to the man. Meats therefore, since they do not reach the soul, cannot in their own nature defile a man; but an inordinate use of meats, which proceeds from a want of order in the mind, makes men unclean. But that meats cannot reach the mind, He shews by that which He adds, saying, But into the belly, and goeth out into the draught, purging all meats. This however He says, without referring to what remains from the food in the body, for that which is necessary for the nourishment and growth of the body remains. But that which is superfluous goes out, and thus as it were purges the nourishment, which remains.