A man is not defiled by what enters into the mouth, but by what proceeds from the mouth. This is what defiles a man.
Other versions
King James Version
Not that which goeth into the mouth defileth a man; but that which cometh out of the mouth, this defileth a man.English Standard Version
it is not what goes into the mouth that defiles a person, but what comes out of the mouth; this defiles a person."New International Version
What goes into a man's mouth does not make him 'unclean,' but what comes out of his mouth, that is what makes him 'unclean.'"