Deuteronomy 14:8 Kabbalah

וְאֶת־הַ֠חֲזִיר כִּֽי־מַפְרִ֨יס פַּרְסָ֥ה הוּא֙ וְלֹ֣א גֵרָ֔ה טָמֵ֥א ה֖וּא לָכֶ֑ם מִבְּשָׂרָם֙ לֹ֣א תֹאכֵ֔לוּ וּבְנִבְלָתָ֖ם לֹ֥א תִגָּֽעוּ׃ (ס)

and the swine, because he parteth the hoof but cheweth not the cud, he is unclean unto you; of their flesh ye shall not eat, and their carcasses ye shall not touch.

Read kabbalistic (mystical) interpretation of Deuteronomy 14:8: and classical mystical sources.