Purpose of the Laws of Hybrids/2
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Laws of Hybrids – כלאיים
Exegetical Approaches
Preserving Natural Order
When Hashem created the world, He made each plant and animal according to its species, and mandated that each species should reproduce according to it own kind. Crossbreeding and other mixing of species is prohibited because it goes against Hashem's plan of creation and the natural order He set in the world.
Sources:Philo #1, Rashbam, Ibn Ezra, R. Yosef Bekhor Shor, Chizkuni, Ramban, R. Bachya, Tur, R. Yosef ibn Kaspi, Ralbag, R. Avraham Saba, Maharal, R. S.R. Hirsch, R . David Zvi Hoffmann
What is wrong with mixing species? All these sources emphasize that since Hashem created each species "according to its own kind," mankind, too, must not mix species. Yet, they disagree regarding the specifics of why this is problematic:
- Hubris – R"Y Bekhor Shor points out that there is a certain hubris in crossbreeding, as if one is trying to turn one's self into Creator, usurping the role of God. Ramban adds that in so doing it is as if one is questioning the perfection of Hashem's world and suggesting that it needs improvement.1
- Harming creation – Both R"Y Bekhor Shor and Ramban2 further point out that Hashem created a world that can perpetuate itself, but hybrids can't reproduce on their own. As such, in creating such hybrids, man reduces the good inherent in Hashem's creation.3
- Less recognition of Hashem – By acting contrary to Hashem's creation,
Crossbreeding vs. Planting – Even though planting seeds of different species one next to another will not create a cross-breed, R"Y Bekhor Shor claims that it is prohibited as a precaution, since it is possible that accidentally the mixed seeds will combine and create a new plant.4 Rashbam, Ibn Ezra and R. Hirsch, instead, assume that the action is prohibited since, regardless of the ability to create a hybrid, it serves as a reminder that mixing species goes against Hashem's creation.
"שַׁעַטְנֵז" – These commentators disagree whether this commandment is related to the other prohibitions of mixing species or if it is prohibited for different reasons:
- Connected – Rashbam suggests that shatnez is simply a variation of the prohibition against making hybrids. Wool is a product of the animal kingdom, while linen emerges from plants and so the prohibited mixture similarly highlights that mixing of species is not desired and goes against Hashem's creation.
- Unconnected – R"Y Bekhor Shor, in contrast, assumes that shatnez is its own unique commandment; it is found in the same verse as the laws of kilayim of animals and plants only due to the fact that both are prohibited mixtures. According to him, shatnez is prohibited in everyday wear because priestly garments were uniquely made from a mixture of wool and linen and is reserved for their use. Wearing similar garments would then be like using the scepter of a king,
"לֹא תַחֲרֹשׁ בְּשׁוֹר וּבַחֲמֹר יַחְדָּו" – These commentators disagree whether this commandment is related to the other prohibitions of mixing species or if it is prohibited for different reasons:
- Connected – R"Y Bekhor Shor and Ramban5 assert that plowing with an ox and donkey is prohibited as a precaution against crossbreeding.6 Rashbam and R. Hirsch, instead, maintain that the prohibition reminds man of Hashem's desire that everything be created "according to its own kind".
- Unconnected – Ibn Ezra and Chizkuni disconnect this prohibition from those of כלאיים, suggesting that it relates instead to those laws regarding care of animals and not causing them distress. Since the two animals have different strengths, it is unfair to the weaker animal to work them together.7
Meaning of "כִּלְאָיִם" – Ibn Kaspi suggests that "" relates to the verb "כלא" which means to restrain or withhold. The laws are so called because the plants and animals are being restrained from mixing with unlike species.
Exceptions – There are two exceptions to the laws of shatnez: both the priestly garments and "tzitzit" may be made of a mixture of wool and linen.
- According to those who suggest that shatnez is no different than the other laws of kilayim, it is not clear why these exceptions should be made.
- According to R"Y Bekhor Shor, though, the exceptions are very understandable as the entire reason for the prohibition is that laymen not wear garments reserved for the priests. Since tzitzit has been understood to be as a symbol that all of Israel should strive to be a "kingdom of priests", this is the one garment that laymen too can wear with wool and linen mixed.
Biblical Parallels
Context
"את חקותי תשמורו"
Preventative Measure
Distancing from Idolatry
The prohibitions were instituted as a reaction to idolatrous customs, in an effort to keep the nation from imitating them.
Crossbreeding animals
Grafting trees
Preventing Inappropriate Sexual Acts
The prohibition against mixing species is meant to teach people not to engage in similarly inappropriate pairings and sexual relations.
