Daily Rambam

Mishneh Torah, Marriage 9

On-RampSeptember 5, 2026

Sugya Map

  • Core Issue: The legal threshold of kiddushin (betrothal) when the intention is directed at an indeterminate group, specifically involving forbidden relatives (ervah).
  • Nafka Minot:
    • Does a "package deal" betrothal fail entirely or succeed for the permissible parties?
    • What is the evidentiary status of a father’s claim regarding his daughter’s betrothal status?
    • The tension between devarim she-b’ervah (marital status) and devarim she-be-mamon (monetary/property law).
  • Primary Sources: Kiddushin 51a, Kiddushin 63b, Kiddushin 64a, Mishneh Torah, Marriage 9.

Text Snapshot

  • Text: "המקדש שתי נשים שהוא אסור לקדשן כאחת... אינן מקודשות" (Mishneh Torah, Marriage 9:1).
  • Nuance: The Rambam uses the term kiddushin as a binary category. The dikduk here is critical: the failure is not merely in the act but in the definition of the object of acquisition. Because the legal subject—the woman—cannot be partitioned by a single, undifferentiated utterance, the kiddushin collapses into a nullity.

Readings

1. The Maggid Mishneh (on 9:1)

The Maggid Mishneh surfaces a fundamental taxonomic conflict: why does the Rambam equate this with a man who says "You and this animal acquire this object" (where the human acquires half), yet denies the women the status of being "half-consecrated"? He argues that mamon (monetary law) and ervah (marital law) operate on different logical planes. In mamon, the law seeks to maximize the efficacy of the acquisition; in ervah, the law operates under the principle of chumra—any uncertainty regarding the validity of a marriage is treated as a total void to prevent the issur of adultery.

2. The Ohr Sameach (on 9:10)

The Ohr Sameach tackles the father's credibility. Why is a father believed that his minor daughter is consecrated, effectively "locking" her from the rest of the world? He posits that the father’s power here is a de facto ownership (ba’alut). He contrasts this with the case of a bogeret (adult), where the father’s word holds no sway because his ba’alut has legally evaporated. His chiddush is profound: the father's credibility is not an evidentiary rule but a function of his agency. If the father could perform the act, his testimony carries the weight of the act itself. This aligns with the Tzafnat Pa'neach—the legal validity of the davar (the word) is contingent upon the koach (the power) of the speaker to effectuate the result.

Friction

The Kushya: The most blistering kushya concerns the Rambam’s ruling in Hilchot Mechirah 22:12, where a person does acquire property even when coupled with an animal. If the mechanism of "one who says X and Y" is legally sound in commerce, why is the ervah framework so rigid that it ignores the permissible component?

The Terutz: The Maggid Mishneh suggests that the difference lies in the nature of the object. A woman is not a fungible commodity; the kiddushin is an existential change in status. The terutz is twofold: First, the concern for mamzerut forces a standard of precision that commerce does not require. Second, the Ohr Sameach adds that because the woman’s consent is a necessary condition for kiddushin—unlike in property transfer—the "indeterminacy" of the father’s or groom’s speech renders the da'at (intention) of the woman impossible to ascertain. We cannot assume she consented to a "lottery" betrothal.

Intertext

  • Shulchan Aruch, Even HaEzer 41:4: The SA reflects the Rambam's hesitation, noting that because of the conflict between the Rambam and the Rif/Ramban tradition, such marriages require a get (divorce) out of safek (doubt). This illustrates the halachic heuristic that in matters of ervah, "doubt" is not a vacuum—it is a positive legal status requiring intervention.
  • Gittin 99b: The discussion of rumors regarding kiddushin and the requirement for "substantiation in court" mirrors the Rambam’s caution in Marriage 9:38-40. The principle is consistent: the sanctity of the marital bond relies on public, verifiable data, not hearsay.

Psak/Practice

In modern application, this lands as a meta-psak heuristic: Indeterminacy creates nullity. In any case where the kiddushin lacks a specific, identifiable da'at (intention) that can be linked to a specific woman, we treat the bond as non-existent to avoid the issur. However, if there is a rumor (kol) that cannot be dismissed, we enforce a get out of chumra. This is the ultimate "safety-first" jurisprudence.

Takeaway

The law of kiddushin demands a singularity of purpose—if you cannot name the bride, you cannot name the bond. In the shadow of Selichot, we are reminded that our relationship with the Divine also requires the specificity of a sincere, unconfused heart; God does not accept a "package deal" of half-hearted devotion.