Mark 7:15-19

there is nothing outside the person which can defile him if it goes into him; but the things which come out of the person are what defile the person.”

And when He later entered a house, away from the crowd, His disciples asked Him about the parable.

And He *said to them, “Are you so lacking in understanding as well? Do you not understand that whatever goes into the person from outside cannot defile him,

because it does not go into his heart, but into his stomach, and is eliminated?” (Thereby He declared all foods clean.)