What Nobody Intends to Move

The Hook

A man needs to close a window. On the far side of the wall lies a corpse, and impurity travels through an opening the way weather does, so the window has to be sealed, or at least narrowed until less than a handbreadth by a handbreadth of it remains. He has two things in the yard. A crate of dried figs that spoiled in storage, and a heap of fresh straw. Neither one can contract impurity. Both are entirely pure. He packs the window with the spoiled figs and the wall holds. Had he packed it with the straw, the impurity would have crossed as though nothing were there at all.

Nothing about a rotten fig is denser than straw. The Rambam gives his reason in a single clause at the head of the chapter, and it is not a fact about produce. A substance seals only if it is an entity the owner does not intend to move. Fresh straw will be moved, because fresh straw is worth something. Spoiled figs will stay, because nobody wants them. The wall holds exactly where the owner has stopped making plans, and three chapters unfold from that.

Tum'at Met 15: The Window Sealed With Rot

The inventory of what may be packed into a window is a catalogue of the discarded. Bitter grasses no animal will eat. Patches of cloth too small and too stiffened with filth to wipe blood from a scratch. A bound gentile, and specifically one of the king's prisoners, whom no one else may release. An infant born after eight months of pregnancy, on the Sabbath, because it is forbidden to move him. Salt shot through with thorns, unfit for food and unfit for the tanner, set on a shard so it will not eat into the wall.

The Rambam gathers all of it under one reason. These substances are not susceptible to ritual impurity, and the owner does not intend to move them, because they are not fit for work. Two conditions, and the second is doing most of the labor. Purity by itself is not enough. Snow, hail, ice and water are as clean as anything in the house and do not reduce a window by a fingerbreadth, because they are susceptible, because they can catch the very thing they were meant to keep out. A fresh bale of straw is not susceptible either, and it fails for the opposite reason. It is too useful. The owner is coming back for it.

Then the line about the Torah scroll, which the Rambam drops without any change of tone. When a Torah scroll has worn out and been placed in a window, if the owner had decided that it would be entombed there, it reduces the size of the window. The holiest object in the house works as masonry, and it works on the strength of a decision. Nothing about the parchment changes. A worn scroll awaiting proper burial elsewhere is a thing in transit and seals nothing. A worn scroll that has been given its grave in the wall is part of the wall.

The chapter closes on a case so fine it is easy to read past. Less than an olive of flesh from a corpse, less than a barley-corn of bone, less than a lentil of a creeping animal: all of these reduce a window, because they are pure and too trivial for anyone to bother moving. And then the reversal. If what stands in the house is a fourth of a kab of bones, a bone smaller than a barley-corn will not reduce that window at all, because the bone in the window is reckoned as part of the bones generating the impurity. Yet the same fragment holds back an olive of flesh without difficulty. The plug does not fail because it is weak. It fails because it recognizes its own kind through the wall and joins them.

Tum'at Met 16: A Handbreadth of Open Sky

Chapter sixteen moves from the wall to the roof, and establishes first that an opening in a roof is not a leak. It is a refuge. Where there is impurity under the roof of a house, the space directly beneath the aperture is pure, because it stands open to the free space of the world, and the rest of the house is impure. Turn it around and the arithmetic holds: if the impurity lies under the aperture alone, the entire house is pure. The measure is a handbreadth square. Above it, impurity departs through the opening; below it, impurity does not leave the room at all.

Now the foot, which is the most unnerving passage in the three chapters. If the aperture is a full handbreadth and a man sets his foot over it, the house and the space beneath become one ohel, one tent, and he is impure along with everything else, because he has made himself part of a covering over impurity. Then the Rambam takes the same foot and the same opening and the same corpse and separates two cases by nothing but sequence. If the impurity was under the aperture and the man afterwards closed it with his foot, he is impure, because he stood over impurity. If his foot was there first and the impurity was brought in afterwards, he is pure, because his foot is part of the tent, and impurity does not travel outward to the tent that is already holding it.

Read that twice. The man does not move. The corpse does not move once it has been set down. The arrangement at the end of the morning is identical in both cases, and so is the impurity of the house. What differs is which of the two arrived first, and on that alone hangs whether a man walks home clean or spends a week being purified. The Rambam is saying that a covering is defined at the moment it forms, and that a man who was already standing where he stood is in a different relation to the trouble than a man who came over to see.

The chapter keeps testing what counts as a roof. A raven holding an olive of a corpse in its beak above an aperture renders the house impure even though the opening is under a handbreadth, because the impurity is now in the opening rather than beneath it. Beams stretched across a house with no ceiling convey impurity if they are a handbreadth wide and let it pass straight through if they are narrower, and the reason is given plainly: impurity that is not under a covering a handbreadth wide and a handbreadth high is treated as flush, and it pierces upward and downward and reaches only what is directly above and below. A roof too narrow to be a roof does not merely fail to protect. It also fails to spread. Shelter and contagion are one faculty, exercised in two directions.

Tum'at Met 17: Only From the Inside

Chapter seventeen turns to projections, the ledges and cornices that jut out from a building, and opens with an admission the Rambam does not always make. A projection facing downward from the side of an entrance, standing twelve handbreadths or less above the ground, conveys impurity no matter how small it is, and he tells you outright that this is merely a Rabbinic ordinance, as is every analogous case where impurity is conveyed by something that is not a sturdy tent. He has labeled the fence while standing in the middle of the field.

The distinctions get finer. A projection over a functional window conveys impurity even at the width of a thumb, provided it sits no more than two fingerbreadths above the window; over a window made only for light it conveys at any size and any height. A ledge built out for a person to lean on while he looks out conveys nothing at all, unless there is a projection above it, in which case we treat the ledge as though it were not there and let the higher one do the work.

Then the jug, where the chapter stops being about architecture. An earthenware jug stands on its base out in the open, and an olive of a corpse lies flush with the ground beneath it. If it lies under the hollow of the jug, the impurity pierces upward and downward and the jug is impure. If it lies under the thickness of the jug's wall, the impurity still pierces upward and downward, and the jug is pure. The reason is one of the quietest sentences in the Mishneh Torah. The impurity does not pierce into its inner space but only into its walls, and an earthenware vessel contracts impurity only from within.

And immediately the guardrail. When does all of this apply? When the jug was pure. If the jug was already impure, or raised a handbreadth off the ground, or covered, or turned upside down, everything is impure, and whatever touches any part of it is impure. Set a row of such jugs leaning against one another and the impurity beneath one reaches beneath all of them, because they count as a single tent. A vessel that is intact and clean and resting on the earth stops impurity at the thickness of its own wall. The identical vessel, already compromised, stops it nowhere. It becomes the fastest road in the yard.

The Unifying Principle

Set the three chapters beside one another and a single test emerges in three parts. A barrier holds if it cannot itself catch what it is holding back, if it is settled rather than in transit, and if it is not already carrying the thing. Fail the first and you have snow in a window. Fail the second and you have fresh straw. Fail the third and you have an impure jug, which is worse than no jug at all, because it gathers what it was supposed to divide.

The second condition should stop us. Nothing physical distinguishes a worn Torah scroll a man has decided to entomb in a wall from one he means to carry away next week. The parchment is the same parchment. What has changed is a decision, and the decision is load-bearing. The Baal Shem Tov taught that in the place where a person's thought is, there he is entirely, and we usually hear that as encouragement about prayer. Chapter fifteen hears it as a fact about masonry. The wall stands where the owner's thought has come to rest, and not an inch further.

Notice also what a barrier is never asked to do. It does not purify the house. The corpse is still in the front room, and the impurity is still real and still spreading everywhere the covering permits. The wall only prevents it from becoming everything. The Alter Rebbe describes the beinoni in the Tanya in almost these terms: the evil in him is neither converted nor removed, it remains exactly where it was, and his whole achievement is that it is denied its garments and never reaches thought or speech or deed. That is chatzitzah, interposition, and not taharah, purification.

And then the jug, which the Chassidic masters could hardly have left alone. A man is called a vessel of clay, and an earthen vessel is injured only from within. What presses against his outer wall does not reach him; the thickness of his own wall absorbs it. The Lubavitcher Rebbe returned again and again to the point that no external circumstance can touch what a Jew essentially is, that real damage is always an inside operation. Chapter seventeen supplies the sober half of the same teaching. Once a vessel has been compromised from within, the walls that used to hold begin to conduct.

Modern Application

Consider what most of us put in our windows. We plug the opening with the arrangement we intend to move: the schedule that holds until the season gets busy, the rule about the phone that holds until something urgent comes in, the commitment about what we will and will not read that holds until we are tired. Every one of these is pure. Not one is a wall, and the law explains why with no interest in our feelings. It is not a wall because you are coming back for it.

The foot over the aperture is more forgiving than it first appears. Two men stand in the same posture over the same trouble. One was standing there before it arrived; the other came over once he heard. The law does not call the second man wicked. It calls him exposed. There is a real difference between the position a person takes in advance, when nothing is happening and nobody is watching, and the position he takes once the room has filled up. Only one of the two is part of the roof.

And the compromised jug is the warning nobody wants. The rule you are using to guard yourself, which you have already quietly broken, does not merely stop working. It transmits. It is the standard you hold others to on precisely the matter where you have made your own exception. The Rambam does not moralize. He tells you that an impure vessel joins whatever it touches into a single tent, and leaves you to count the vessels in your own yard.

The Closing

These chapters fall on the seventh of Elul, in the weeks the Alter Rebbe pictured as the King's walk through the field, and Elul is when the temptation to attempt surgery is strongest. We would like this to be the year the corpse is carried out of the house. The Sfat Emet reads the month more patiently, as the season for preparing the vessel rather than for finishing the work, and the Rambam describes that preparation in physical detail.

What seals a window is not strength and it is not holiness. It is the thing you have finished intending to move. Look at what you have kept near the opening because you might still want it, and ask whether you are building a wall or storing your goods in the gap. The house does not become pure this month. It becomes divided, and that is the whole of what is being asked.