There is nothing from outside the man, entering into him, which is able to defile him. But the things going out from him, those are the things defiling the man.
And he said to them, You know how unlawful it is for a man, a Jew, to unite with or to come near to one of another nation. Yet God showed to me not to call a man, not one, common or unclean.
Truly, all things are pure to the pure, but to the ones being defiled and unbelieving, nothing is pure, but even their mind and conscience has been defiled.
Do not be carried away by various and strange doctrine; for it is good that the heart be confirmed by grace, not by foods, in which those walking in them were not profited.