Halakhah su Deuteronomio 12:23

These sources, however, serve only to demonstrate that animal-directed conduct which is compassionate in nature constitutes a "good deed" but do not serve to establish a system of normative duties or responsibilities. Particularly in light of the strong nomistic element present in Judaism, the absence of normative regulations might well be regarded as indicative of the absence of serious ethical concern for the welfare of members of the animal kingdom. But this is demonstrably not the case, for, in Jewish teaching, there is no dearth of nomoi designed to protect and promote animal welfare. The most obvious example of a regulation having such an effect, and one which is clearly biblical in origin, is contained in the verse "If thou seest the ass of him that hateth thee lying under its burden, thou shalt forebear to pass by him; thou shalt surely release it with him" (Exodus 23:5). The selfsame concern is manifest in the prohibition against muzzling an ox while it threshes in order that the animal be free to eat of the produce while working (Deuteronomy 25:4). Similarly, Scripture provides that both domestic animals and wild beasts must be permitted to share in produce of the land which grows without cultivation during the sabbatical year.⁴See Me’iri, Baba Meẓi‘a 33a, and Sefer ha-Ḥinnukh, no. 596. The purpose of other biblical laws pertaining to animals in less clear-cut. The prohibition against plowing with animals of different species, recorded in Deuteronomy 22:10, is understood by Sefer ha-Ḥinnukh, no. 550, as well as by Da‘at Zekenim mi-Ba’alei ha-Tosafot and Ba’al ha-Turim in their respective commentaries on Deuteronomy 22:10, as rooted in considerations of prevention of cruelty to animals, but is understood in an entirely different manner by Rambam, Guide of the Perplexed, Book III, chapter 49, as well as by Ramban in his commentary on Deuteronomy 22:10. However, Rambam, Guide, Book III, chapter 48, regards the prohibition against slaughtering an animal and its young on the same day, recorded in Leviticus 22:28, as a precautionary measure designed to prevent the slaughter of the offspring in the presence of its parent. The underlying concern is to spare the mother the anguish of seeing her young killed before her eyes “for in these cases animals feel very great pain, there being no difference regarding this pain between man and the other animals. For the love and the tenderness of a mother for her child is not consequent upon reason, but upon the activity of the imaginative faculty, which is found in most animals just as it is found in man.” Here, Rambam speaks of concern for the welfare of the animal rather than for the moral character of the human agent; see below, notes 14-15 and accompanying text. This interpretation is reflected in the comments of R. Baḥya ben Asher, Leviticus 22:28, and, in part, in Sefer ha-Ḥinnukh, no. 294. Sefer ha-Ḥinnukh regards the commandment prohibiting the slaughter of an animal and its young on the same day as designed both to spare the parent from anguish and as a conservation measure as well. See also Abarbanel’s Commentary on the Bible, ad locum. Rambam’s analysis of the rationale underlying this precept is rejected by Ramban in his Commentary on the Bible, Deuteronomy 22:6. According to Ramban, the concern is not to avoid pain to the animal but to purge man of callousness, cruelty and savagery.
Although the Gemara, Baba Meẓi‘a 32a, declares that assistance in unloading a burden from an animal is mandated by reason of ẓa’ar ba’alei ḥayyim but that the obligation to assist in loading the burden upon the animal is not independently mandated by reason of ẓa‘ar ba’alei ḥayyim, Ritva, cited by Shitah Mekubeẓet, Baba Meẓi‘a 31a, s.v. aval te’inah, asserts that the commandment requiring a person to render assistance to another who is engaged in loading an animal is predicated upon considerations of ẓa‘ar ba’alei ḥayyim. According to Ritva, a single person engaged in this task is likely to cause additional discomfort to the animal by applying the full force of his body weight whereas, when he is assisted by another, there is no need to apply similar pressure.
Sefer ha-Ḥinnukh, no. 186, is of the opinion that the prohibition against the slaughter of sanctified animals outside the Temple precincts is rooted in considerations of ẓa‘ar ba’alei ḥayyim. According to Sefer ha-Ḥinnukh, such slaughter is forbidden because no purpose is served thereby and hence constitutes ẓa‘ar ba’alei ḥayyim. See below, note 29.
Neither the prohibition against mating animals of different species, Leviticus 19:19, nor the prohibition against emasculation of animals, Leviticus 22:24, is understood by classical rabbinic scholars as rooted in considerations of animal welfare. For a discussion of animal welfare as a possible rationale associated with other commandments, see R. Joel Schwartz, Ve-Raḥamav al Kol Ma’asav (Jerusalem, 5744), pp. 11-16. Although the literal meaning of the biblical text may be somewhat obscure, talmudic exegesis understands Genesis 9:4 and Deuteronomy 12:23 as forbidding the eating of a limb severed from a living animal. Jewish law teaches that this prohibition, unlike most other commandments, is universally binding upon all peoples as one of the Seven Commandments of the Sons of Noah. Sabbath laws contained in both formulations of the Decalogue reflect a concern which goes beyond the mere elimination of pain and discomfort and serve to promote the welfare of animals in a positive manner by providing for their rest on the Sabbath day: "But the seventh day is a Sabbath unto the Lord thy God, on it thou shalt not do any manner of work … nor thine ox, nor thine ass, nor any of thy cattle …" (Deuteronomy 5:14). Even more explicit in expressing concern for the welfare of animals is the verse "… but on the seventh day thou shalt rest; that thine ox and thine ass may have rest" (Exodus 23:12).⁵The requirement that the parent bird be released before the young are taken and the concomitant prohibition against taking both the parent and the young, recorded in Deuteronomy 22:6-7, quite obviously have the effect of sparing the parent from anguish. The Mishnah, Berakhot 33b, however, does not view this desideratum, laudable as it may be, as the underlying purpose of the commandment. Cf., however, Rambam, Guide, Book III, chapter 48; Ramban, Commentary on the Bible, Deuteronomy 22:6; and Sefer ha-Ḥinnukh, no. 545.

Drawing blood on Shabbat is ordinarily forbidden. According to Rashi, Shabbat 107a, and most other early-day authorities, the prohibition is classified as a form of "slaughter," one of the thirty-nine paradigmatic categories of labor prohibited on the Sabbath. Scripture declares, "for the blood is the life (nefesh)" (Deuteronomy 12:23), and hence removal of any quantity of blood is, halakhically speaking, tantamount to extinguishing a measure of "life." According to Rambam, Hilkhot Shabbat 8:7, drawing blood is categorized as a derivative form of "threshing," another of the prohibited categories of labor. Threshing involves extracting a kernel from its husk. Removal of blood, according to Rambam, is similar in that it involves expressing blood from the tissues in which it is imbedded.

And do not think to say that this negative commandment of "You may not" is a general prohibition, as each and every matter is a negative commandment on its own. And so is it explained in Tractate Makkot (it should say Keritot 4b), "If he ate tithe of grain, wine and oil, he is liable for each and every one." And it challenges there, "And do we administer lashes for a general prohibition?" And it answers it, "The verse is superfluous. How is it? It is written (Deuteronomy 12:23), 'And you shall eat in front of the Lord, your God [...] the tithe of your grain, your wine and your oil.'" [This discussion continues in Makkot 18a:] "Let the [Torah] write, 'You may not eat them in your gates.' Why do I need the [Torah] to enumerate all of them here? [Hence] we understand from it [that it is] to designate for them a negative commandment for each and every one." And this verse of "And you shall eat" is at the end of this Order.