Exodus 22:30

And holy men, tasting unconsecrated things innocently, shall you be before Me; but flesh torn by wild beasts alive you may not eat, but throw it to the dog as his portion.

AND YE SHALL BE HOLY MEN UNTO ME. The reason for the expression in this verse is that until now He mentioned only the ordinances and admonished them about repulsive matters, but now when He is about to begin the law of forbidden food, He prefaced it by saying, And ye shall be holy men unto Me. For in order to preserve his physical life man should [be able to] eat anything which serves that purpose, and the prohibitions concerning certain foods are only a means of guarding the purity of the soul, in order that one should eat clean things which do not give rise to harshness and coarseness in the soul. Therefore He said, And ye shall be holy men unto Me, that is to say: “I want you to be holy men so that you will become suitable for Me, to cleave to Me, for I am Holy; therefore do not defile your souls by eating abominable things.” And similarly He said, Ye shall not make yourselves detestable with any swarming thing that swarmeth, neither shall ye make yourselves unclean with them, that ye should be defiled thereby. For I am the Eternal your G-d; sanctify yourselves therefore, and be ye holy; for I am Holy. Swarming things thus make the soul detestable, but the treifah is not detestable, however abstention from eating it adds holiness.

ואנשי קודש, do not eat matters which are proscribed [טמא not strictly in a halachic sense, Ed.] such as something treifah. The Torah in Deuteronomy also links the prohibition of eating animals which died of causes other than ritual slaughter (נבלה) as linked to your being עם קדוש “a holy nation.”

ואנשי קודש תהיון לי, the manner in which you will prove that you all are men of holy purpose is that you will allow your firstborns to be devoted to the service of Me and you will hand over the tithes, etc., stipulated as “My gifts,” [in matters of specific ritual, seeing that every Jew has to serve Hashem. Ed.] Initially, it was the task of the firstborn to teach the common people the details of Jewish law and ritual. When they do this the result will be והתקדשתם והייתם קדושים, “you will sanctify yourselves and remain holy” (Leviticus 20,7).

ובשר בשדה טרפה, even the kind of treifah which is neither ritually impure nor confers impurity at all. [if this is forbidden, נבלה, animals which die of other causes than ritual slaughter are certainly forbidden as food. Ed.]

And the meat in the field that is torn. Since the dog risked its life over the torn prey when the wolf came to tear it, it should not seem like an imposition of good will towards it that when you have torn prey, you should throw it to the dog as reward for having guarded it until now so it would not be torn, and also to continue guarding the other animals, for thus is the way of the world to appoint dogs to guard the flocks from wolves.