Saturday, October 10, 2026
What Was Once Possible
Yibbum v'Chalitzah 6|Sefer Nashim
The whole institution rests on one phrase from Deuteronomy. So that the name of the deceased not be obliterated within Israel. A man dies without children, and the law turns to his brother and asks either for a marriage that continues the dead man's household, or for a ceremony performed before a court that releases the widow to marry whomever she wishes. Chapter six does not describe the ceremony. It asks the question that comes before it, which is who is inside this obligation at all, and it answers by looking past what anyone is capable of now to what was once possible.
So an elderly woman is obligated, and a woman who has become barren is obligated, for one stated reason: they were once fit to bear children. A man who has been castrated acquires his brother's widow if he performs yibbum with her, because there was a time when he was potent. But a man who was never capable, and a woman who was never capable, carry no obligation at all, and the widow of such a man is free from the start to marry another man. The question the chapter puts to every person inside it is not what are you now. It is what were you ever.
Which Brother, and Which Rite
Four categories of brothers, named in the opening line and then filled in over three halachot. Some may perform either rite. Some may perform neither, and the widows owe them nothing and may marry other men. Some may perform yibbum but not chalitzah. And some may perform chalitzah but not yibbum. Begin with the men who are exempt outright: a saris chamah, who never showed male development and was never potent, and an androgynos. They are not fit to father children, the Rambam writes, nor had they been at any time. Since the entire purpose of the institution is to keep a name from being obliterated, and these names are obliterated by nature, nothing attaches to them and nothing is asked of the widow.
Then the division that should unsettle you. Fit for yibbum but not for chalitzah: a man who cannot hear or speak, a man who is not mentally competent, and a minor. The reason is that chalitzah requires reading and understanding and they lack the competence for it, while yibbum, as he ruled earlier in these laws, requires no intent at all. So the rite that needs a mind is closed to them and the rite that needs no mind stays open. And the consequence is severe, and he states it without softening. When a deaf-mute performs yibbum he may never divorce her, because by entering into relations he establishes a marriage bond that is completely binding, and he is incapable of divorcing a woman in a completely effective manner. A boy over nine years and one day acquires her, and may not divorce her until he reaches majority. The law does not pretend any of that is comfortable. It records exactly who is bound by it and for how long.
And the other side, fit for chalitzah but not for yibbum. Men whose status is in doubt, where nobody can establish whether the widow was forbidden to the deceased brother. A man with crushed testicles, or a crushed member, or castrated in any other way. An elderly man whose virility has weakened and who is incapable. A tumtum, whose sex cannot be determined, performs chalitzah and not yibbum because his status is a doubt, and if an operation is performed and he is revealed to be male he may do either rite, as he desires. The castrated man who does perform yibbum acquires her, because there was a time when he was potent, and then must divorce her with a get, because he is forbidden to marry a native-born Jewess. Two rulings in a single sentence, pulling in opposite directions, and both of them follow from the same fact about his past.
Which Widow, and Where Nothing Attaches
The same fourfold division is then run over the widows, and the mirror is nearly exact. A woman who cannot hear or speak, a woman who is not mentally competent, and a minor may perform yibbum but not chalitzah, for the identical reason: they lack the competence to read and to understand. And here the law's asymmetry is stated without apology. If the yavam wishes to divorce the deaf-mute with a get after relations, he may, because according to Scriptural and Talmudic law neither a woman's understanding nor her consent is required for a divorce to take effect. The man who cannot speak and performs yibbum is bound for life. The woman who cannot speak can be released at her husband's word. The Rambam does not reconcile the difference. He writes it down.
Then chalitzah but not yibbum: women forbidden to the yavam by a negative commandment, women forbidden by a positive commandment, and the sh'niyot, the further relatives the Sages added. The reasoning is worth following closely. By law she should perform yibbum, since yibbum is a positive commandment and a positive commandment takes precedence over a negative one. But the Sages decreed against it, because the commandment reaches only the first act, and every act after that would simply be forbidden, so they would not open the door at all. If the yavam transgresses and performs yibbum anyway, he acquires her in definitive manner and must divorce her with a get. And wherever there is a doubt whether the deceased divorced her, she performs chalitzah and not yibbum, lest the yavam fall into a prohibition, because a brother's wife who was divorced is forbidden as an ervah. But where the doubt is only whether she was ever consecrated to the brother, she is like any other widow and may perform either rite, since no prohibition is possible on either outcome.
Then the category where nothing attaches at all, with the verses laid alongside each item. So that the name of the deceased not be obliterated excludes the wife of a saris chamah and the wife of an androgynos, since those names are obliterated by nature. And the firstborn that she bears excludes an aylonit, who is by nature incapable of bearing a child. The wife of the deceased excludes the wife of a man who is not competent and the wife of a minor, because with regard to them there is no concept of marriage at all. And he will take her as a wife excludes a woman forbidden to the yavam as one of the arayot, his wife's sister or mother or daughter, because she cannot be taken as a wife by him. Only a woman who is fit to be married, and whose consecration by this particular brother would be binding, is obligated. Against all of which stand the wife of a deaf-mute, the elderly woman and the woman who has become barren, every one of them fully obligated. They were once fit. That is the entire difference.
The House That Cannot Be Half Built
Now the chapter's hardest ruling. A man dies childless leaving two wives, and one of them is forbidden to his brother as an ervah, being the sister or the mother or the daughter of that brother's wife. Plainly she owes him nothing. But neither does the other wife, who is forbidden to nobody at all. The Sages derived it from the verse that speaks of the brother who did not build his brother's house: a household from which he may take whichever wife he desires is under obligation to him, and if he cannot build one part of the house he does not build the permitted part either. So the second woman remains forbidden to him as his brother's wife. She is not merely excused from the rite. She is closed to him permanently.
And then it propagates, and the Rambam works it out with names. Reuven dies leaving two wives, one forbidden to Shimon and both permitted to Levi: that household owes Shimon nothing and owes Levi everything. Levi performs yibbum with the permitted one, Levi has another wife of his own, Levi dies childless, and both of his widows fall before Shimon. Neither of them owes him anything. One is disqualified because she was married to the same man as a woman forbidden to Shimon, and the other because she was married to the same man as the first. This principle applies, he writes, to any further extension of itself. Once a woman has been freed of obligation to a particular brother she can never become obligated to him again, and she carries that immunity into her next marriage and confers it on every other wife of that husband.
The same severing can happen through time rather than through family. The wife of a brother who died before a younger brother was born owes that brother nothing, because when brothers dwell together is read to mean when they live at the same time, and she remains forbidden to him forever and frees all her husband's other wives along with her. And then come the exceptions that keep the rule honest. If the forbidden woman was an aylonit, the laws of yibbum never applied to her, so it is as if she were not there and the other wife is fully obligated. If the brother divorced her, or she dissolved the marriage by refusal, or she died during his lifetime, the other wife is obligated, because a co-wife is disqualified only where both women were married to him at the moment of death, when the obligation takes effect. But where there is a doubt about the forbidden woman's kiddushin, or a doubt whether she was divorced, the other wife performs chalitzah and not yibbum. The timing decides it, and so does the doubt.
An Obligation Attached to a History
Read the chapter whole and one instinct runs through all of it. The law is not asking what is possible. It is asking what was ever possible. The elderly woman and the barren woman are obligated because they were once fit. The castrated man acquires her because there was a time when he was potent. The saris chamah and the aylonit stand outside the entire structure, not because they cannot now but because they never could. And where the past itself cannot be established, where nobody can say whether she was divorced or whether she was ever consecrated, the law declines to guess. It routes everyone to the rite that cannot produce a transgression, which is the release.
The Alter Rebbe taught that a soul is a portion of God above, literally, and he pressed that hardest about the most ordinary and least regarded person. Something that is a portion of God above is not measured by what it is currently producing. The Baal Shem Tov's entire emphasis fell into that gap between what a person can produce and what a person is. And the Lubavitcher Rebbe returned constantly to the principle that nothing in a Jew is ever written off, that what looks finished is dormant rather than over. Chapter six is that idea in the driest possible register. A capacity that is gone still generates a claim, because it was real once, and what was real once does not stop counting.
Notice also where the limits fall. Almost every restriction in this chapter is a restriction on the brother. He may not perform yibbum where a prohibition might be involved. He may not perform it where her status is in doubt. He may not touch the household at all if any part of it is closed to him. He may not use a rite he lacks the competence to understand, and if he uses the other one he may be bound by it for life. Where the law is uncertain, what it takes away is his option, and what it leaves her is the release. The arithmetic of the chapter keeps narrowing what the man is permitted to do.
What You Have Decided Is Finished
The habit this chapter legislates against is the habit of writing people off by their present capacity. Someone no longer produces, so the obligation toward them quietly lapses. A commitment no longer yields anything, so it gets reclassified as a season that ended. The law's answer is flat. She was once fit, therefore she is obligated, therefore somebody has to stand up in front of a court and release her by name. No quiet lapse is available anywhere in the chapter. The only exit from an obligation here is a public act performed by one specific person who cannot send a substitute.
Then the house. The ruling about the household that cannot be half built is a ruling about a household, but the instinct it describes is everywhere. One person in a family is impossible for you, so the whole family becomes impossible. One room is closed, so you stop entering the house. The difference is that the Torah closed that household deliberately, said exactly why, and then ran the consequences out through named brothers over several halachot so that nobody could pretend it had happened by accident. When a person closes a whole house, the reason is usually never said out loud, and it is certainly never written down.
And the competence rulings should make anyone careful. Chalitzah requires a mind, so the law will not permit it to someone who cannot understand what he is doing, and the rite it does permit him cannot afterwards be undone. The Rambam does not call that outcome just. He states precisely what happens and how long it lasts, and the commentaries immediately begin asking when it can be eased. Where the law puts a person somewhere he cannot reverse, it says so in the open. That is a standard worth measuring other arrangements against.
The Name That Stays
What the chapter is finally protecting is a name. Not a property interest and not lineage in the abstract. The verse concerns one particular man whose name would otherwise be obliterated within Israel, and every exemption in chapter six is calculated against that single purpose. Where a name could never have continued, the law asks nothing of anyone and lets the widow go. Where a name could once have continued, it asks a great deal, and it will not allow anybody to decide privately that the matter has lapsed with time.
So the chapter reads as a long argument against two kinds of convenience. The convenience of deciding that a person's capacity is gone and therefore the claim is gone, which the law refuses by looking backwards instead of forwards. And the convenience of closing a whole household because one part of it is shut, which the law permits only where the Torah itself shut it and said so in a verse. Everything else here is a limit on the brother: what he may not do, what he may not choose, which rite is taken out of his hands the moment nobody can be certain. The widow's release is the one thing this chapter is determined to deliver, and it refuses to let that happen quietly.