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Mishneh Torah, Foundations of the Torah 1

Bite-SizedExpert – Beit Midrash AnalysisFebruary 15, 2026

Sugya Map

  • Issue: The Rambam's foundational assertion of God as the "Primary Being" (מצוי ראשון) and the nature of His existence.
  • Nafka Mina(s): The positive commandment of yedi'at Hashem (knowing God) and the severe theological implication of denying His existence (kofer ba'ikar).
  • Primary Sources: Mishneh Torah, Foundations of the Torah 1:1-3; Exodus 20:2 ("אנכי ה' אלקיך"); Deuteronomy 4:35 ("אין עוד מלבדו"); Jeremiah 10:10.

Text Snapshot

The Rambam opens: "יְסוֹד הַיְסוֹדוֹת וְעַמּוּד הַחָכְמוֹת לֵידַע שֶׁיֵּשׁ שָׁם מָצוּי רִאשׁוֹן וְהוּא מַמְצִיא כָּל נִמְצָא." (Mishneh Torah, Foundations 1:1:1). He elaborates: "וְאִם יַעֲלֶה עַל דַּעַת שֶׁהוּא אֵינוֹ מָצוּי, אֵין דָּבָר אַחֵר יָכוֹל לִהְיוֹת מָצוּי... כִּי כָּל הַנִּמְצָאִים צְרִיכִין לוֹ וְהוּא בָּרוּךְ הוּא אֵינוֹ צָרִיךְ לָהֶם וְלֹא לְאֶחָד מֵהֶם." (Mishneh Torah, Foundations 1:1:2).

Dikduk/Leshon Nuance

"יש שם" is noted as an Arabic idiom for "exists" (Steinsaltz, Foundations 1:1:1 s.v. שֶׁיֵּשׁ שָׁם). "מצוי ראשון" signifies primacy in both time and causality (Steinsaltz, Foundations 1:1:2 s.v. מָצוּי רִאשׁוֹן).

Readings

  1. Peirush on Mishneh Torah (Foundations 1:1:2): Clarifies "מצוי ראשון" as "מחוייב המציאות" (necessarily existent). He asserts "מציאותו היא מהותו ואינה תוספת על מהותו" (His existence is His essence, not an added attribute), because God has no gvul (limit) by which to grasp His mahut (essence).
  2. Seder Mishnah (Foundations 1:1:1): Observes a remez (hint) to the Tetragrammaton (י-ה-ו-ה) in the opening words: יסוד היסודות ועמוד החכמות. He suggests this alludes to the Mishneh Torah's role as the definitive codification of Torah Sheba'al Peh, which, like Torah Shebichtav, is directly from God.

Friction

Kushya

The Peirush claims "מציאותו היא מהותו ואינה תוספת על מהותו" (Foundations 1:1:2), implying we can "know" this profound identity. Yet, the Rambam's philosophy elsewhere (e.g., Guide, I:58) emphasizes negative attributes, asserting we cannot truly grasp God's essence. This seems contradictory.

Terutz

The Peirush himself pre-empts this: "לא נוכל להשיג מהותו אלא נאמר שהוא מצוי" (We cannot grasp His essence except to say that He exists) (Foundations 1:1:2). Our 'knowledge' that His existence is His essence is a conceptual understanding of His absolute simplicity and non-compositeness, not a positive apprehension of what that essence is.

Intertext

  • Rambam, Sefer HaMitzvot, Aseh 1: This mitzvah of yedi'at Hashem is explicitly counted by the Rambam as the first positive commandment, echoing the opening of the Decalogue, "אנכי ה' אלקיך" (Exodus 20:2).
  • Rambam, Guide for the Perplexed, Part I, Ch. 50-57: Develops the doctrine of negative attributes (shelelat ha-te'arim), reinforcing that human intellect can only describe what God is not, thereby approaching His true existence without defining it.

Psak/Practice

The yedi'at Hashem is not merely a philosophical exercise but "עיקר הדת" (the foundation of faith) (Peirush, Foundations 1:1:1). While belief can be through kabbalah (tradition), philosophical proofs serve to "יסמך הלב בו ותתחזק ההאמנה" (support the heart and strengthen faith) (Peirush, Foundations 1:1:3).

Takeaway

The Rambam's opening establishes God as the necessarily existent, causally primary Being, whose unique existence is His essence—a conceptual bedrock for all subsequent Jewish theology and practice.