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Mishneh Torah, Tithes 7-9
Sugya Map
The halakhic matrix of Rambam’s Mishneh Torah, Hilchot Ma’aser (Tithes) Chapters 7–9, operates at the intersection of agricultural economics, the metaphysics of halakhic designation (chalut), and the epistemic boundaries of retroactive determination (bereirah). This sugya addresses how legal reality is imposed upon physical matter, particularly when that matter is in transition, mixed, or distant.
┌────────────────────────────────────────┐
│ Hilchot Ma'aser Ch. 7–9 │
└───────────────────┬────────────────────┘
│
┌─────────────────────────┼────────────────────────┐
▼ ▼ ▼
[The Metaphysics of] [The Mathematics of] [The Jurisprudence of]
[ Bereirah ] [ Mixtures ] [ Milveh & Ownership]
│ │ │
Is retroactive selection How do we tithe a blend Can a debt function as
valid d'oraita vs. of tevel and chullin prepayment for tithes
d'rabbanan (7:1, 9:7)? without losing value? without violating usury?
Primary Issues
- The Limits of Retroactive Designation (Bereirah): Whether a verbal or mental designation of tithes can take effect retroactively on a physical entity that has not yet been physically separated.
- The Mechanics of Physical Intermingling (Bilul): The distinction between liquids (where molecules intermingle and make localized designation impossible without bereirah) and solids (where items remain distinct, allowing spatial designation).
- Agricultural Debt Structures (Milveh le-Kohen/Levi): The legal validity of using outstanding loans to priests or Levites as a mechanism to offset future tithing obligations, and the survival of this agreement post-mortem.
- The Mathematics of Mixtures (Tevel u-Metukan): The structural formulas required to extract tithes from a mixture of untithed (tevel) and tithed (chullin metukan) produce without violating the prohibition of tithing from the exempt (patur) onto the obligated (chayyav).
Nafka Minot (Practical Halakhic Ramifications)
- Sabbatical and Friday Tithing: Can an individual make a verbal stipulation on Friday afternoon to permit drinking wine on Shabbat before the physical separation of tithes is executed?
- Inheritability of Agricultural Offsets: Does a loan made to a Levite to secure future tithes bind his heirs, and does it require the presence of real property (karka) to survive?
- The Geometry of Tithing: If a barrel of wine is designated as a tithe within a multi-barrel stack, but its exact location is forgotten, what physical protocol must be followed to permit the remaining barrels?
Primary Talmudic Sources
- Sanhedrin 22b and Eruvin 36b–37b: The core tannaitic dispute regarding bereirah ("retroactive selection").
- Gittin 30a–31a: The sugya of lending to a Kohen or Levite and tithing on the assumption that they are still alive.
- Demai 7:1–8: The mishnayot outlining tithing formulas in mixtures and the tithing of demai on Shabbat.
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Text Snapshot
היו לו מאה לוג יין טבל מן התורה... אם אמר: "שני לוגין שאני עתיד להפריש הרי הן תרומה..." לא יתחיל וישתה וישאיר בסוף... שאין אומרים בשל תורה נחשב כאילו נברר אלא עד שיברר.
"If one had one hundred log of wine that is tevel according to Scriptural Law... If he says: 'The two log that I will separate are terumah...' he should not begin drinking and leave over [the quantity designated] at the end... For with regard to Scriptural Law, we do not say we consider it as if a separation has been made unless it actually has been made."[^1]
[^1]: Mishneh Torah, Hilchot Ma'aser 7:1.
Textual Nuance and Grammatical Precision
The Rambam employs highly specific language here. He writes: נחשב כאילו נברר ("considered as if it has been selected"), rather than the standard Talmudic shorthand יש ברירה ("there is retroactive selection").
By using the passive-descriptive formulation נחשב כאילו נברר, the Rambam signals that bereirah is not merely a procedural leniency or a legal fiction. Rather, it is an ontological transformation of the object.
For the wine to be permitted to be drunk, every drop consumed must have been already defined as non-sacred (chullin). Since Ein Bereirah (we do not accept retroactive selection) in Scriptural Law (d'oraita), the status of the consumed liquid remains in a state of unresolved suspension (safek). Because this suspension is a matter of Scriptural law, we rule stringently (safek d'oraita l'chumra)[^2].
[^2]: Compare with Hilchot Terumot 1:21, where the Rambam applies this exact epistemic boundary to the laws of separating the great heave-offering.
Readings
The conceptual structure of Chapters 7 through 9 of Hilchot Ma'aser hinges on how the physical act of separation interacts with the metaphysical status of the produce. We must analyze this through three distinct lenses: the nature of bereirah, the mechanics of tithing mixtures, and the financial-halakhic mechanics of the priestly loan.
┌────────────────────────────────────────┐
│ Conceptual Readings │
└───────────────────┬────────────────────┘
│
┌─────────────────────────────┼─────────────────────────────┐
▼ ▼ ▼
[ The Ohr Sameach ] [ The Ra'avad ] [ The Chazon Ish ]
*Bereirah* is not a single Rejects Rambam's formula *Demai* leniency is not
concept; "Berur d'Yoma" for mixtures in 8:4; a weak prohibition, but
vs. "T'lai b'Da'at". insists on strict *meduma*. a structural shift.
1. The Ohr Sameach: The Bifurcated Nature of Bereirah
The Ohr Sameach[^3] analyzes the Rambam’s stance on bereirah by contrasting two types of retroactive determination:
- Berur d'Yoma (Day-of-Selection): A physical act that merely reveals which specific entity was intended from the beginning (e.g., "the two log I will eventually pour out").
- T'lai b'Da'at (Dependent on Volition): A retroactive status that depends on future, unpredictable human choices (e.g., "whichever path I decide to walk tomorrow").
[^3]: Ohr Sameach, Hilchot Terumot 1:21 s.v. "U-mah she-katav".
The Ohr Sameach argues that the Rambam does not reject bereirah across the board as a logical impossibility. Rather, the Rambam recognizes that in Scriptural Law, the Torah demands a chalut shem (an established status of sanctity) that is anchored in a defined, physical object at the moment the status is invoked.
When a person drinks wine today relying on a selection they will make tomorrow, the consumed wine lacks a defined status now. In Rabbinic law (d'rabbanan), however, the legal reality is more fluid. We do not require an antecedent physical anchor; a conceptual anchor suffices. This is why bereirah is accepted for demai (Rabbinic doubt) or Rabbinic tevel.
2. The Ra'avad: The Structural Mechanics of Mixtures (Ma'aser 8:4)
In Chapter 8, Halachah 4, the Rambam discusses a case where 100 se'ah of untithed tithes (ma'aser rishon that is still tevel for terumat ma'aser) becomes mixed with 100 se'ah of fully tithed ordinary produce (chullin metukan). The Rambam rules:
"He should separate 110 se'ah from the entire mixture. Everything that he separates is considered as the tithes. The 90 se'ah that remain are ordinary produce as before."
The Ra'avad immediately raises an objection (Hassagot Ra'avad ad loc.):
"This is a profound error... If the tithes are mixed with ordinary produce, the terumat ma'aser contained within those tithes (which is 10 se'ah) is now mixed with 190 se'ah of non-sacred produce. It should be nullified (batel) in a ratio of one to ten, or it should render the entire mixture meduma!"
The debate between the Rambam and the Ra'avad rests on a fundamental question: Is the untithed portion within a mixture treated as an independent, active prohibitory agent, or is it treated as a latent percentage of the whole?
- The Ra'avad’s View: The terumat ma'aser (the one-tenth of the tithe that belongs to the priest) is already present in the mixture as a distinct entity of potential sacred food (davar she-lo nitkan). Therefore, standard laws of food mixtures (ta'aruvot) and nullification (bitul) must apply. If there is not enough chullin to nullify it (which requires a 100-to-1 ratio for terumah), the entire mixture becomes meduma (sacred and forbidden to non-priests).
- The Rambam’s View: As long as the terumat ma'aser has not been formally named and separated, it does not exist as an independent physical entity of terumah. It is merely a "latent obligation" (chovah) resting on the pile. Therefore, we do not apply the standard mechanics of bitul (nullification) or meduma. Instead, we apply a mathematical formula to extract the obligation. By separating 110 se'ah, we ensure that the 10 se'ah of terumat ma'aser is physically removed, leaving the remaining 90 se'ah as completely permitted chullin.
3. The Chazon Ish: The Nature of Demai Leniencies
The Chazon Ish[^4] addresses the unique leniencies of demai discussed throughout Chapter 9. The Rambam rules that one may make stipulations on Friday to tithe demai on Shabbat, and that workers may tithe demai using a streamlined verbal formula.
[^4]: Chazon Ish, Demai, Siman 15, Ot 3.
The Chazon Ish asks: Is this because the prohibition of demai is inherently weak (since statistically, most common people [ammei ha-aretz] did in fact tithe), or is it a formal, structural rule of Rabbinic legislation?
He proves from the Rambam's language in Hilchot Ma'aser 9:7 that the leniency is structural. The Sages did not merely suspend the rules of tithing for demai because of a high probability of compliance. Rather, they redefined the shem tevel (the status of being untithed) of demai itself.
Under Rabbinic law, demai does not possess a true status of tevel; it possesses a secondary status of safek (doubt). Consequently, the Sages permitted the use of bereirah (retroactive selection) as a tool to resolve this doubt. This explains why one can make a stipulation on Friday and drink on Shabbat: the safek is resolved retroactively by the eventual separation.
Friction
Kushya 1: The Friday Stipulation Contradiction
In Chapter 7, Halachah 1, the Rambam rules that for Scriptural tevel, one cannot drink wine relying on a future separation. This is because Ein Bereirah in Scriptural Law.
However, in Chapter 9, Halachah 7, the Rambam discusses a case of Scriptural tevel where a person is in the house of study on Friday afternoon and fears the Sabbath will begin before he can tithe his 100 figs. The Rambam rules:
"He should say: 'The two figs that I will separate tomorrow are terumah...'. On the morrow, he makes these separations and may then partake [of the figs]."
The Kushya: This appears to be a direct contradiction! If the figs are Scriptural tevel (טבל מן התורה), and Ein Bereirah applies to Scriptural law, how can a verbal stipulation made on Friday permit him to make the physical separation on Shabbat?
If Ein Bereirah is the rule, then at the moment Shabbat begins, the figs should be considered untithed tevel and Muktzah (forbidden to move or touch). The eventual separation on Saturday cannot retroactively validate his Shabbat use!
Terutz A: The Lechem Mishneh's Distinction (Structural vs. Volitional Bereirah)
The Lechem Mishneh[^5] resolves this by distinguishing between two different problems:
[^5]: Lechem Mishneh, Hilchot Ma'aser 9:7 s.v. "U-mah she-katav".
- The problem of drinking before separating: In Chapter 7, Halachah 1, the person wants to drink first and leave the tithes for later. This is forbidden because at the moment of drinking, the liquid being consumed has not been identified. This requires bereirah to retroactively declare that "what I drank was chullin."
- The problem of designating before separating: In Chapter 9, Halachah 7, the person does not eat the figs before separating them. Rather, he makes a stipulation on Friday, keeps the pile intact over Shabbat, and then separates the tithes first on Saturday before eating.
Here, we do not need bereirah to retroactively permit what was already consumed. The physical separation occurs before consumption.
The only issue is whether his Friday verbal designation can take effect on Saturday. This is not a problem of bereirah, but of delayed activation (chalut l'achar zman). The designation made on Friday simply takes effect on Saturday at the moment of physical separation.
[Chapter 7:1 Scenario] [Chapter 9:7 Scenario]
Friday/Saturday Friday Saturday
┌───────────────────────────┐ ┌───────────┐ ┌───────────┐
│ Drink wine first, │ │ Verbal │ │ Physical │
│ separate tithes later. │ │ Tenai │ │ Separation│
└─────────────┬─────────────┘ └─────┬─────┘ └─────┬─────┘
│ │ │
▼ └──────┬───────┘
Requires *Bereirah* to ▼
retroactively permit the wine. Delayed Activation (Permitted)
(Forbidden for Torah Tevel) No eating occurs before separation.
Terutz B: The Chazon Ish's Resolution (The Mechanism of Shabbat Tithing)
The Chazon Ish[^6] offers a different conceptual approach. The reason one cannot tithe on Shabbat is because it resembles "fixing an object" (tikkun kli), which is a Rabbinic prohibition.
[^6]: Chazon Ish, Orach Chayim, Siman 56.
By making a verbal stipulation on Friday, the person removes the creative element of the act. The designation of sanctity was already complete on Friday; the physical act on Saturday is merely a technical extraction, not a creative act of tikkun.
Therefore, the Friday stipulation does not rely on bereirah to retroactively permit tevel. Rather, it is a mechanism to bypass the Rabbinic prohibition of tikkun on Shabbat.
Kushya 2: The Logic of the 101st Se'ah Forfeit
In Chapter 8, Halachah 2, the Rambam rules that if 100 se'ah of tevel (from which terumat ma'aser has not been separated) is mixed with 100 se'ah of fully tithed chullin, one must separate 101 se'ah.
The Rambam states that the 101st se'ah is a "forfeit" (hefsed) from the ordinary produce. He explains:
"Why must he forfeit this se'ah? So that he will not say: 'The 100 se'ah that I set aside are ordinary produce and the 100 that remain are tevel.'"
The Kushya: This explanation is highly difficult to understand. If the mixture is a 50/50 blend (100 se'ah of tevel and 100 se'ah of chullin), then any portion removed from the mixture will statistically consist of exactly 50% tevel and 50% chullin.
If we separate 101 se'ah, we are separating 50.5 se'ah of tevel and 50.5 se'ah of chullin. How does adding a single se'ah to the separation solve the structural problem of tithing from the obligated (chayyav) onto the exempt (patur)?
Furthermore, why does the owner "forfeit" a se'ah of chullin? If the 101st se'ah is treated as tevel, where did the chullin go?
Terutz: The Radbaz on the Metaphysics of "Shem Tevel"
The Radbaz[^7] resolves this by analyzing the legal status of the mixture. When tevel and chullin are mixed, we do not view them as a collection of distinct physical particles. Rather, the entire mixture acquires a status of diluted tevel (tevel me'urav).
[^7]: Radbaz, Hilchot Ma'aser 8:2.
If the owner were to simply separate 100 se'ah and declare, "This 100 is the tevel and the remaining 100 is the chullin," his declaration would fail. Under halakhic principles, we cannot say that the 100 se'ah he chose contains all the untithed elements, because Ein Bereirah applies.
Therefore, to permit the remaining 99 se'ah of chullin, he must perform a separation that guarantees the removal of all untithed elements.
Physical Mixture: 100 Se'ah Tevel + 100 Se'ah Chullin (200 Se'ah Total)
┌────────────────────────────────────────────────────────┐
│ Homogeneous Mixture │
└───────────────────────────┬────────────────────────────┘
│
▼
Separation of 101 Se'ah
┌───────────────────────────┴────────────────────────────┐
│ │
▼ ▼
101 Se'ah Removed 99 Se'ah Remaining
(Treated entirely as *Tevel* (Pure *Chullin* - Permitted)
to ensure all obligation is extracted)
The 1% obligation of terumat ma'aser on the original 100 se'ah of tevel is exactly 1 se'ah. By separating 101 se'ah and treating the entire separated portion as tevel, we ensure that the 1 se'ah of terumat ma'aser is fully contained within the separated volume.
The owner "forfeits" this se'ah because it must be given to the priest. The remaining 99 se'ah are left completely free of any tithing obligation. This is a mathematical and legal mechanism to extract a localized obligation from a non-localized mixture.
Intertext
To understand the broader implications of the Rambam's rulings on Hilchot Ma'aser, we must examine how these principles operate in other areas of the Mishneh Torah.
1. Gittin 30a and Hilchot Malveh ve-Loveh: The Priestly Loan and Usury
In Chapter 7, Halachot 4–6, the Rambam outlines the mechanism of lending money to a Kohen or Levite with the agreement that the lender will write off the debt in exchange for keeping the tithes he separates from his crops:
[Israelite Lender] ─────────────── $100 Loan ───────────────► [Levite Debtor]
│ │
│ (Lender separates tithes from his own crops) │
│ │
▼ ▼
Keeps the Tithes ◄─────── Deducts value from debt ────────────────┘
(Priced at lower market rate)
This arrangement raises a serious question regarding the prohibition of interest (Ribbit). The Rambam notes:
"When he calculates the worth of the produce... he has the right to consider their value according to the lower market price. This is not considered as interest."[^8]
[^8]: Mishneh Torah, Hilchot Ma'aser 7:6.
Why is this not a violation of Ribbit? Generally, if a lender receives a benefit or a discount on goods as a result of a loan, it is considered Rabbinic interest (Avak Ribbit)[^9].
[^9]: See Hilchot Malveh ve-Loveh 5:1–3.
The Halakhic Mechanism
The Gemara in Gittin 30a explains that this leniency is a special rabbinic ordinance designed to benefit the priests and Levites (takanat ha-shuk / kedi she-yiskeru). If lenders were not permitted to value the tithes at the lower market price, they would refuse to lend money to impoverished priests and Levites.
The Sages permitted this specific discount because the lender is performing a mitzvah by separating and managing the tithes.
Furthermore, since the tithes technically belong to the priest or Levite the moment they are designated, the transaction is viewed not as a discount on a purchase, but as a debt-clearance mechanism (gviyat chov). A debtor is always permitted to pay off a debt with assets valued at a standard market rate, even if that rate is favorable to the creditor[^10].
[^10]: See Hilchot Malveh ve-Loveh 19:1.
2. Gittin 3:8 and the Assumption of Life (Chazakat Chayim)
In Chapter 7, Halachah 4, the Rambam rules:
"He may continue to separate tithes on their behalf on the assumption that they are alive. He need not show concern that the priest or Levite died."
This is a classic application of the principle of Chazakah (the legal presumption of status quo). We assume that a person who was alive remains alive until proven otherwise.
However, we must contrast this with the Rambam's ruling in Hilchot Gerushin 6:28, based on Gittin 28a:
[Legal Presumptions]
│
┌─────────────────────────┴─────────────────────────┐
▼ ▼
[ Hilchot Gerushin 6:28 ] [ Hilchot Ma'aser 7:4 ]
A husband sends a get (divorce) An Israelite separates tithes
via an agent. He may rely on relying on a loan to a Levite.
the presumption that the husband is He may rely on the presumption
alive *except* in cases of old age that the Levite is alive without
or severe illness. qualification.
Why is the presumption of life in Hilchot Ma'aser absolute, whereas in Hilchot Gerushin it is qualified?
The Analytical Resolution
The difference lies in the nature of the prohibition.
- Hilchot Gerushin deals with a potential Scriptural prohibition of adultery (Eshet Ish), which carries the penalty of spiritual excision (karet). Because of the severity of the prohibition, the Sages applied a higher standard of scrutiny to the Chazakah when there is a reason to doubt (such as old age or sickness).
- Hilchot Ma'aser, while involving a Scriptural obligation to tithe, operates under a different dynamic when using a loan offset. If the Levite has died, the tithes separated are technically tevel only under Rabbinic law (since under Scriptural law, the act of verbal designation is valid even if the recipient is not immediately present).
Because the potential violation is lighter, the Sages allowed the lender to rely fully on the basic Chazakat Chayim without qualification[^11].
[^11]: See the Pnei Yehoshua on Gittin 30a s.v. "Mishna", who develops this distinction between Eshet Ish and Tevel.
Psak/Practice
1. Modern Israeli Agricultural Practice: The Tithing Formula
In contemporary Israel, agricultural produce purchased from markets that lack rabbinic supervision carries the status of demai or tevel gamur (pure untithed produce). Because we do not have the ashes of the Red Heifer, all Kohanim today are assumed to be ritually impure (tmei met). Therefore, the terumah and terumat ma'aser cannot be eaten; they must be separated and disposed of respectfully.
The modern tithing protocol directly utilizes the formulas outlined in Chapter 7 and Chapter 9:
┌────────────────────────┐
│ The Tithing Plate │
│ (Slightly over 1%) │
└───────────┬────────────┘
│
┌──────────────────────┴──────────────────────┐
▼ ▼
[ 1% of the total volume ] [ 0.1% extra volume ]
Designated as *Terumat Ma'aser* To ensure the physical separation
for the remaining 9% of the contains the entire obligation
tithe (*Ma'aser Rishon*). (following the formula in 8:2).
- The 1.1% Separation: Slightly more than one-hundredth of the produce is set aside on a plate. This extra amount ensures that the physical separation contains the entire obligation, following the Rambam’s formula in Chapter 8, Halachah 2.
- The Verbal Formula: The consumer recites a formula based on Chapter 9, Halachah 5:
"The hundredth part of this produce on the plate, plus the adjacent portion inside the main pile, shall be Ma'aser Rishon. That same hundredth part on the plate shall be Terumat Ma'aser for the rest of the Ma'aser Rishon. The remaining portion on the plate is Challah (if it is dough). The remaining tithes (Ma'aser Sheni or Ma'aser Ani) shall be established in the southern portion of the pile."
- Redemption: The sanctity of the Ma'aser Sheni is then transferred to a coin of minimal value (worth at least a perutah), which is subsequently defaced or discarded, in accordance with the laws in Chapter 9, Halachah 6.
2. Meta-Psak Heuristic: Safek D'Rabbanan L'Kula in Structural Frameworks
The Rambam’s application of bereirah in demai (Chapter 9) demonstrates a fundamental meta-psak heuristic: A Rabbinic doubt (safek d'rabbanan) is not merely resolved with leniency on a case-by-case basis. Rather, the entire legal system governing that doubt can be structured with lenient mechanisms.
Ordinarily, we do not allow a person to perform an action that relies on a future event to validate a present status. However, because demai is a Rabbinic creation, the Sages did not merely say, "If you are unsure if it was tithed, you may eat it."
Instead, they constructed a parallel system of tithing that allows for conditional designations, retroactive determinations (bereirah), and verbal offsets. This shows that the Sages used lenient legal mechanisms to make their agricultural decrees manageable for the public, ensuring that stringencies did not cause widespread non-compliance.
Takeaway
Halakhic designation is not a physical act of creation, but a metaphysical boundary line. Through the legal mechanisms of bereirah and structural tithing, the Sages demonstrated that legal reality can reshape physical mixtures, allowing us to find order and sanctity within chaotic environments.
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