Mark 7:16

He called all the multitude to himself, and said to them, "Hear me, all of you, and understand.

There is nothing from outside of the man, that going into him can defile him; but the things which proceed out of the man are those that defile the man.

When he had entered into a house away from the multitude, his disciples asked him about the parable.

He said to them, "Are you thus without understanding also? Don't you perceive that whatever goes into the man from outside can't defile him,