Leviticus 11:4

and you shall detest them. You shall not eat of their meat, and you shall detest their carcasses.

That which enters into the mouth doesn’t defile the man; but that which proceeds out of the mouth, this defiles the man.”

being only (with meats and drinks and various washings) fleshly ordinances, imposed until a time of reformation.

“Speak to the children of Israel, saying, ‘These are the living things which you may eat among all the animals that are on the earth.

“ ‘These you may eat of all that are in the waters: whatever has fins and scales in the waters, in the seas, and in the rivers, that you may eat.

“ ‘You shall detest these among the birds; they shall not be eaten because they are an abomination: the eagle, the vulture, the black vulture,

Yet you may eat these: of all winged creeping things that go on all fours, which have long, jointed legs for hopping on the earth.

“ ‘These are they which are unclean to you among the creeping things that creep on the earth: the weasel, the rat, any kind of great lizard,

All food which may be eaten which is soaked in water shall be unclean. All drink that may be drunk in every such vessel shall be unclean.

“ ‘If any animal of which you may eat dies, he who touches its carcass shall be unclean until the evening.

Then I said, “Ah Lord Yahweh! Behold, my soul has not been polluted; for from my youth up even until now I have not eaten of that which dies of itself, or is torn of animals. No abominable meat has come into my mouth!”

But Daniel purposed in his heart that he would not defile himself with the king’s dainties, nor with the wine which he drank. Therefore he requested of the prince of the eunuchs that he might not defile himself.

Don’t be carried away by various and strange teachings, for it is good that the heart be established by grace, not by food, through which those who were so occupied were not benefited.