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עֶרֶב פֶּסַח · Erev Pesach Series · 5 of 14
עַד הַפֶּסַח — דִּיּוּק הַלָּשׁוֹן
Until Pesach — The Precision of Vow Language
נדרים ח׳:ב׳
Nedarim 8:2 — Full Text
עַד הַפֶּסַח — אָסוּר עַד שֶׁיַּגִּיעַ. עַד שֶׁיְּהֵא הַפֶּסַח — אָסוּר עַד שֶׁיֵּצֵא. עַד לִפְנֵי הַפֶּסַח — רַבִּי מֵאִיר אוֹמֵר, אָסוּר עַד שֶׁיַּגִּיעַ. רַבִּי יוֹסֵי אוֹמֵר, אָסוּר עַד שֶׁיֵּצֵא.
שָׁלֹשׁ לְשׁוֹנוֹת: Three Phrases, Three Meanings
The Mishnah distinguishes three ways of phrasing a vow that references Pesach — each with a different legal endpoint
In the laws of nedarim, precise language determines the duration of the prohibition. A vow lasting "until Pesach" is not the same as one lasting "while it is Pesach" — and both differ from "before Pesach." The Mishnah rules on each phrase in turn, then presents a dispute on the ambiguous third.
עַד הַפֶּסַח
"Until Pesach"
אָסוּר עַד שֶׁיַּגִּיעַ
Forbidden until Pesach arrives — i.e. until the 14th of Nissan begins. Once Pesach starts, the vow expires.
עַד שֶׁיְּהֵא הַפֶּסַח
"Until Pesach has been"
אָסוּר עַד שֶׁיֵּצֵא
Forbidden until Pesach passes — i.e. until after the 7th day of Pesach ends. The vow spans the entire festival.
עַד לִפְנֵי הַפֶּסַח
"Until before Pesach"
מַחְלֹקֶת
Disputed — R. Meir and R. Yose disagree on what "before Pesach" means as a vow endpoint.
מַחְלֹקֶת: What Does "Before Pesach" Mean?
The phrase עַד לִפְנֵי הַפֶּסַח is ambiguous — R. Meir and R. Yose read it differently
עַד לִפְנֵי הַפֶּסַח — Until "Before" Pesach
Does לִפְנֵי mean "the moment before it arrives" or "the period before it ends"?
רַבִּי מֵאִיר
אָסוּר עַד שֶׁיַּגִּיעַ
"Before Pesach" means the period leading up to its arrival. The vow expires when Pesach begins — same as עַד הַפֶּסַח. "Before" simply emphasizes the anticipatory approach.
רַבִּי יוֹסֵי
אָסוּר עַד שֶׁיֵּצֵא
"Before Pesach" means the vow remains in effect throughout the entire festival — one is still "before [the end of] Pesach" until it passes. The vow expires only when Pesach ends.
עַד הַפֶּסַח
Uncontested: expires when Pesach begins (14 Nissan eve). All agree.
עַד שֶׁיְּהֵא הַפֶּסַח
Uncontested: expires when Pesach ends (after 21 Nissan). All agree.
עַד לִפְנֵי — R. Meir
Expires when Pesach begins — same endpoint as עַד הַפֶּסַח. "Before" = approaching.
עַד לִפְנֵי — R. Yose
Expires when Pesach ends — same endpoint as עַד שֶׁיְּהֵא. "Before [its end]" = throughout.
לוּחַ זְמַנִּים: Where Each Phrase Ends
Mapping the three vow endpoints against the Nissan calendar
Nissan — Vow Endpoint Map
א׳
1 Nis
...
י״ד
14 Nis
Erev Pesach
ט״ו
Pesach 1
...
Chol HaMoed
כ״א
Pesach 7
כ״ב+
After
עַד הַפֶּסַח
Expires at start of 14 Nissan — when Pesach arrives
עַד שֶׁיְּהֵא הַפֶּסַח
Expires after 21 Nissan — when Pesach has passed
עַד לִפְנֵי — מֵאִיר
= עַד הַפֶּסַח — expires when Pesach begins
עַד לִפְנֵי — יוֹסֵי
= עַד שֶׁיְּהֵא — expires when Pesach ends
הַמַּסְקָנָה — Pesach as a Linguistic Landmark
This mishnah reveals something important: Pesach is so deeply embedded in the Jewish calendar that it functions as a natural reference point in everyday speech — people make vows timed to it without needing to specify a date. The Mishnah's precision in distinguishing three near-identical phrases reflects a core principle of neder law: language creates legal reality, and every word must be accounted for. The dispute over עַד לִפְנֵי is not pedantry — it reflects two coherent readings of what "before" means in temporal language, a question as relevant to contracts and deadlines today as it was then. See also Nedarim 8:5, where Pesach serves the same role as endpoint for rain-season vows.
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