דברים, פרק י״ד, פסוק ד׳

The dietary laws establish a clear framework for identifying permitted meats, transitioning from broad identifying marks to a specific catalog of species. The primary approach among commentators is that the Torah consistently opts for the most concise expression. Since impure land animals significantly outnumber pure ones, the text lists the permitted minority. Conversely, among birds, where pure species are the majority, the impure ones are detailed instead.

Beyond brevity, specifying the names establishes a crucial legal boundary between domesticated livestock and wild animals. This distinction carries significant practical weight, as the fat of wild animals is permitted for consumption and their blood requires covering, unlike domesticated livestock. Additionally, naming each species individually dictates the laws of food mixtures; if the meat of an ox and a goat are mixed, they are treated as two distinct species rather than a single category of permitted meat [הכתב והקבלה]. On a deeper level, singling out the ox serves as a subtle rebuke regarding the sin of the Golden Calf, demonstrating to the Israelites that the creature they once worshipped is ultimately just a common animal destined for consumption and bodily waste [שפתי כהן].

Although the overarching category of domesticated livestock is introduced first, wild animals immediately follow in the classification. This proximity establishes that, from a legal standpoint, wild animals are subsumed under the broader definition of domesticated livestock [רש״י, רלב״ג, אדרת אליהו]. Consequently, the identifying signs of purity, the laws concerning carcass impurity, and the prohibitions against crossbreeding apply equally to wild creatures [תורה תמימה, משכיל לדוד]. Conceptually, prioritizing the category of domesticated livestock indicates that all permitted animals possess a docile nature that yields to human mastery. This mirrors the spiritual ideal that the animalistic drives within a person must remain subordinate to their higher spiritual calling [רש ר הירש].

The catalog of pure animals begins with the ox, representing all cattle regardless of age or gender [שד״ל], as it is the most prominent and valued of the animals, followed by the sheep and the goat [רלב״ג]. The specific plural phrasing used to describe the sheep and goats establishes a vital law of lineage. For an animal to be permitted for consumption, both its father and mother must belong to the same pure species. The legal status of the offspring is entirely determined by its mother, rendering it permitted even if it is born lacking the external physical signs of purity [תורה תמימה, רש ר הירש]. Some note that ancient translations specifically emphasize male goats to align with the masculine phrasing used for the ox [נתינה לגר].

Although ten different species are sanctioned for human consumption, a clear boundary is drawn regarding their ultimate purpose. While all may be served at the human table, only the three domesticated species listed first—the ox, sheep, and goat—are permitted to be offered as sacrifices on the altar, whereas wild animals are entirely disqualified [רבנו בחיי]. Furthermore, as long as an animal is definitively identified as belonging to one of these pure species, it remains permitted for consumption even if the specific physical features that normally attest to its purity, such as its mouth or hooves, have been severed or damaged [העמק דבר].