Mishneh Torah, Foundations of the Torah 9

Hook

What's more foundational: the Torah's eternal nature or a prophet's divine command? Rambam grapples with this tension, revealing a nuanced balance that defines the limits of religious authority.

Context

Maimonides (Rambam) in his Mishneh Torah aims to codify the entirety of Jewish law and belief. This chapter lays out one of his 13 Principles of Faith: the immutability of the Torah, a cornerstone against any claims of replacement or permanent alteration.

Text Snapshot

"It is clear and explicit in the Torah that it is [God's] commandment, remaining forever without change, addition, or diminishment... 'It is not in the heavens.' This teaches that a prophet can no longer add a new precept [to the Torah]." "If a person will arise... and say that God sent him to: a) add a mitzvah, b) withdraw a mitzvah, c) explain a mitzvah in a manner which differs from the tradition received from Moses, or d) if he says that the mitzvot commanded to the Jews are not forever... he is a false prophet." "When a prophet - who has already proven himself to be a prophet - instructs us to violate one of the mitzvot of the Torah... for a limited amount of time, it is a mitzvah to listen to him." (Mishneh Torah, Foundations of the Torah 9:1-3 - Sefaria URL)

Close Reading

Structure

Rambam first asserts the Torah's eternal, unchangeable nature, then immediately introduces a paradoxical exception: a true prophet can command a temporary violation of a mitzvah. This sets up a crucial distinction between permanent abrogation and temporary suspension.

Key Term

The phrase "לא בשמים היא" (lo bashamayim hi - "It is not in the heavens") from Deuteronomy 30:12 is central. As Steinsaltz notes, it implies the Torah and its halakhot are no longer dependent on ongoing divine revelation, but are entrusted to human interpretation and application.

Tension

The apparent contradiction between the Torah being "forever without change" and the allowance for a prophet to instruct a temporary violation of a mitzvah (like Elijah on Mount Carmel) is resolved by the purpose and duration. Temporary deviation for a greater divine purpose (e.g., disproving idolatry) is distinct from permanent nullification.

Two Angles

The Seder Mishnah, commenting on Rambam, highlights a debate with Rabbi Yosef Albo (Sefer HaIkkarim). While Albo suggests a prophet could potentially change a permanent mitzvah if their mission was undeniably proven, Rambam—as defended by Seder Mishnah—firmly rejects this. For Rambam, a prophet's temporary directive is not a change to the Torah's law, but a hora'at sha'ah (temporary ruling) for a specific, limited purpose, without affecting the underlying eternal obligation.

Practice Implication

This framework critically evaluates religious claims. Any "new" spiritual teaching or movement purporting to permanently change or abrogate a Torah mitzvah is fundamentally incompatible with Jewish law, regardless of accompanying signs or wonders.

Chevruta Mini

1. How do we, as a community, discern when a hora'at sha'ah (like Elijah's) is truly from God, given the severe consequences of misjudgment?
2. If "לא בשמים היא" means the Torah is no longer in heaven, how much authority do human courts have to adapt or interpret its laws in changing times without "adding" or "diminishing"?

Takeaway

The Torah's eternal nature defines the boundaries of prophetic authority, allowing temporary deviations for higher purposes but never permanent nullification.