Mishneh Torah, Leavened and Unleavened Bread 2-4

Hook

Why does the Torah command us to "destroy" leaven on the "first day," yet our entire legal tradition insists that day is the fourteenth—the day before the holiday actually begins?

Context

The Rambam (Mishneh Torah, Leavened and Unleavened Bread 2:1) relies on masorah (oral tradition) to define "the first day" as the 14th of Nisan. This is a critical pivot point in Jewish law: the transformation of a holiday observance into a rigorous act of preparation. While the Torah gives the command, the Sages define the timeline, ensuring we are ready before the holiness of the festival arrives.

Text Snapshot

"It is a positive commandment from the Torah to destroy chametz... 'On the first day, destroy leaven from your homes.' On the basis of the oral tradition, it is derived that 'the first day' refers to the day of the fourteenth... What is the destruction to which the Torah refers? To nullify chametz within his heart and to consider it as dust."

Close Reading

1. Structure: Rambam establishes the Torah obligation (mitzvah) first, then immediately pivots to the Rabbinic expansion of how we fulfill it (searching with a candle, at night).
2. Key Term: Bitul (nullification). Rambam defines the core Torah requirement not as physical burning, but as a psychological act: "consider it as dust."
3. Tension: The tension lies between the Torah's demand for internal resolve and the Sages' demand for external labor. One is a state of mind; the other is a hunt through every "hole and crevice."

Two Angles

• Rashi (Pesachim 5a): Argues that the search is an inherent part of the mitzvah to remove chametz—it is the practical mechanism that proves the resolve is real.
• Ramban (Commentary on Exodus 12:15): Suggests that the Torah’s command is satisfied by the "nullification in the heart," and the search is a secondary layer of protection added by the Sages to ensure we don't accidentally come to eat the chametz.

Practice Implication

This halachah teaches us that preparation is a two-step process: Internal and External. Before you scrub your kitchen, you must first mentally "nullify" the items, treating them as valueless. Decision-making is more effective when you first divest yourself of the emotional attachment to the "leaven" (the clutter or the habit) before you begin the physical work of removing it.

Chevruta Mini

1. If the Torah is satisfied with a mere mental declaration (bitul), why do the Sages force us to engage in the exhausting physical search (bedikah)?
2. Does the physical search enhance the bitul, or is it an admission that the bitul of the heart is often unreliable?

Takeaway

True preparation requires both the internal resolve to let go and the external discipline to search out the hidden remnants.