Nevertheless these shall you not eat of them that chew the cud, or of them that divide the hoof: as the camel, because it chews the cud, but divides not the hoof; it is unclean unto you.
Read Chapter 11
Clement Of Alexandria
The allwise Educator, by the lips of Moses, compared association with corrupt men to living with swine when he forbade the ancient people to partake of swine. He made it plain in those words that they who invoke God should not seek the company of the unclean who, like swine, revel in bodily pleasures and filthy habits of life and impure delights, itching for evilminded pleasures of sex. . ...
He adds too that they are not to eat “kite or mastophage or eagle,” meaning “You shall not go near those who make their livelihood by plundering others.” He says other similar things under some sort of allegory. .
It is then proper that the barbarian philosophy, on which it is our business to speak, should prophesy also obscurely and by symbols, as was evinced. Such are the injunctions of Moses: “These common things, the sow, the hawk, the eagle and the raven, are not to be eaten.” For the sow is the emblem of voluptuous and unclean lust of food and lecherous and filthy licentiousness in venery, always prurient, and material, and lying in the mire and fattening for slaughter and destruction. ...
Camel, which hath a hard skin connecting its hoof below. The Arabs and Persians eat its flesh. God will have his people keep at a distance from imitating them; and that is one of the reasons for this and similar precepts. (Calmet)
Believing people are forbidden to use fish without its fins for food. Fish with fins and scales even leap up above the water. What do the fish with fins represent if not chosen souls? They alone pass over into the body of the heavenly church.