Do Not Follow Your Heart

A very short verse. Hashem speaks to Moshe, and Moshe is going to pass it on. Nothing has been said yet - this is the Torah clearing its throat. What comes next is meant for every single person, not only for the priests.

Why include a verse that contains no content? Because it marks a boundary. The story of the scouts is finished, the laws that follow it are finished, and now a fresh instruction begins. Look at the last word, lemor, literally to say. The message is not handed to Moshe to keep. It is handed to him to hand on, and the next verse says exactly to whom.

The standard formula in Bamidbar is vayedaber Hashem el Moshe lemor, as at 13:1 opening the account of the scouts; here it is vayomer. The unit that follows is addressed to bnei Yisrael directly, with no priestly mediation, which is worth noticing in a book largely taken up with the Levites and the order of the camp. Rashi at 15:41, copying, as he says there, from the work of Rabbi Moshe HaDarshan, reads the closing sequence of the parashah as deliberate rather than accidental: the wood-gatherer is set beside the passage on idolatry because one who desecrates the Sabbath is regarded as having served idols, and the passage of tzitzit is set beside them because it too is weighed against all the commandments together - a line that stands on its own as a baraita in Menachot 43b.

Here is the instruction itself. If your clothing has four corners, tie threads onto each corner, and one thread on each corner should be dyed blue. That is what a tallit is: a cloth with four corners and knotted threads hanging from them. Look at an Israeli flag and you are looking at the same object - the blue stripes were taken from the stripes of a tallit.

Why a garment? Because a mitzvah you wear goes wherever you go. It is with you on the bus and in your room and when nobody is watching, which is not true of anything that happens inside a synagogue. The blue thread, techelet, came from a sea creature called the chilazon, and at some point in late antiquity people lost track of which creature it was. For well over a thousand years afterwards Jews wore white tzitzit with no blue in them at all, and the argument over whether the murex snail is the original chilazon is live right now - in Jerusalem you can buy either kind. A commandment can survive losing half of itself.

Rashi gives two derivations of tzitzit. The first is from the threads that hang down, comparing Yechezkel 8:3, vayikacheni betzitzit roshi, he took me by the lock of my hair. The second is from the root of looking, as in meitzitz min hacharakim, peering through the lattice, Shir HaShirim 2:9 - the fringe named for the seeing it is meant to produce. Rashbam, on the word tzitzit itself, gives only the first sense, a bunch of threads suspended like the hair of a head; it is at the next verse, on vehaya lachem letzitzit, that he takes the seeing sense as the plain one and says he found it so in the Sifrei. On techelet Rashi says only tzeva yarok shel chilazon, the dye of the chilazon. Rabbi Meir in Menachot 43b builds the chain that Rashbam repeats there in the name of our rabbis: techelet resembles the sea, the sea resembles the firmament and the firmament resembles the Throne of Glory. Two words repay attention: kanfei, which means corners and wings at once, and ledorotam, a garment law written for generations who did not yet exist rather than for the wilderness camp.

This is the reason for the threads. You will see them, and because you saw them you will remember what Hashem asked of you, and because you remembered it you will do it. Then comes the warning: do not go chasing after your heart and your eyes. Your eyes find something, and before you have decided anything you already want it. The threads are there to be seen first.

Here is the hard line, and the order in it is strange. Heart, then eyes. Rashi says the reverse - ha’ayin ro’ah vehalev chomed vehaguf oseh, the eye sees, the heart desires, the body acts - which is not the order the verse itself lists. Neither is obviously wrong. Sometimes you see a thing and then want it. Sometimes you already wanted it and your eyes go out hunting for it, which is the more uncomfortable of the two, and is the one the verse’s own order describes. And notice the verb. It is not do not see. Taturu means to scout, to go out and survey, and it is the same verb used at the start of this parashah for the twelve men sent to look over the land. You are not being told not to notice. You are being told not to send out a search party.

Rashi on uzchartem supplies the arithmetic: the gematria of tzitzit is six hundred, and eight threads with five knots make six hundred and thirteen. It is worth noticing that the count needs the plene spelling, while the Torah here writes tzitzit defectively, twice, in verse 38. On velo taturu he writes halev veha’einayim hem meraglim lagguf, mesarserim lo et ha’aveirot - the heart and the eyes are spies for the body, brokering its transgressions - the eye sees, the heart covets, the body commits the sin. That gloss reverses the verse’s own sequence, and Rashi himself makes the link back to chapter 13 explicit, glossing taturu kemo mitur ha’aretz, where men sent latur the land returned to report vanehi ve’eineinu kachagavim. Ramban records the rabbinic reading in which acharei levavchem is scepticism and heresy while acharei eineichem is immorality, and argues that the techelet is precisely what stops the heart from going there. The baraita in Menachot 43b sets out the mechanism in the verse’s own order: looking brings a person to remembering, and remembering brings him to doing; Rabbi Shimon bar Yochai adds there that one careful in this mitzvah merits to receive the Divine Presence. Ibn Ezra makes the practical point that the garment is worn through the whole day and not only at the hour of prayer, because the hours outside prayer are exactly when a person goes astray. One grammatical oddity to sit with: the object of ur’item is singular, oto, not the plural the threads would take.

The threads are not the point, and even remembering is not the point. Doing is the point - the verse says remember and do. Then it says something surprising: you will be holy. Holy does not mean perfect. It means set aside for something, the way a special dish is kept in the cupboard all year and used for one meal.

Kedoshim does not mean saintly. The root means set apart, reserved, dedicated to a purpose - it is the root of kiddush, of kiddushin, of kodesh. And look at the grammar of the sentence. Verse 40 does not order you to be holy. It says remember and do, and then holiness is what follows. It is stated as a consequence, not as a demand, and that is easy to read past. It changes what is actually being asked of you.

Verse 40 restates verse 39 in compressed form, tizkeru and va’asitem, and then makes one quiet shift. Verse 39 said kol mitzvot Hashem, the commandments of Hashem, in the third person; here it is kol mitzvotai, my commandments, first person - which prepares the doubled ani Hashem Elokeichem that frames verse 41. Vihyitem kedoshim l’Elokeichem uses the same pairing as kedoshim tihyu at Vayikra 19:2, but the syntax differs: there it is an imperative, here it stands after lema’an and reads as outcome. And note the lamed on l’Elokeichem. The holiness is not being described, it is being assigned - set apart to someone. What does the assigning, in this passage, is a thread on a hem.

The passage ends by saying who has been speaking: the same One who brought the people out of Egypt. That is why the threads matter. It is not a rule out of nowhere. It comes from someone who already has a history with you. And notice that the last words of the verse repeat its first words, like closing a door properly behind you.

Why does a law about threads end with the Exodus? Because it is not really a law about threads. Rashi reads the clause as a condition: I brought you out on these terms, that you take my decrees upon yourselves. You can push back on that, since nobody now living agreed to any terms, and Rashi reads the closing repetition as facing exactly that objection - ani Hashem Elokeichem said a second time, with Egypt stripped out, as if answering a refusal rather than making a claim. This verse is also the reason the third paragraph is where the Exodus gets mentioned in the Shema every morning and every night.

Rashi packs four readings into this one verse. Ani Hashem, faithful to pay reward, and Elokeichem, faithful to exact punishment. Asher hotzeti etchem he takes as a condition: on this condition I brought you out of Egypt, that you accept my decrees. The repetition at the end, with no mention of Egypt attached, he reads as pre-empting refusal - even against your will I am your King. And the fourth is the startling one: the One who distinguished in Egypt between the drop that was a firstborn and the drop that was not will also distinguish between genuine techelet and kala ilan, indigo, hung on a garment by a man who calls it techelet. The paragraph has spent three verses on the inside of a person and closes with a warning about faking the outward sign. Berachot 12b counts the mention of the Exodus among the five things that earned this paragraph its place in the daily Shema. Its last words are also the ones the prayer leader repeats aloud, joined to emet at the opening of the blessing that follows.