Mark 7:18

18 “Are you so dull?” he asked. “Don’t you see that nothing that enters a person from the outside can defile them?

Read Mark 7:18 Using Other Translations

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;
And he said to them, "Then are you also without understanding? Do you not see that whatever goes into a person from outside cannot defile him,
“Don’t you understand either?” he asked. “Can’t you see that the food you put into your body cannot defile you?

What does Mark 7:18 mean?

John Gill's Exposition of the Bible
Mark 7:18

And he saith unto them
With some warmth of spirit and resentment, at their stupidity:

are ye so without understanding also?
As well as others, and to such a degree; and "yet", as Matthew expresses it, ( Matthew 15:16 ) , so wretchedly stupid, and so long, and as much, as others:

do ye not perceive?
common sense will tell you,

that whatsoever thing from, without entereth into the man, it cannot
defile him; (See Gill on Matthew 15:16).

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