Ein Sof אין סוף

Ein Sof (אין סוף, “without end”) is the Kabbalistic term for the divine reality prior to all manifestation, prior to all names, prior to the ten Sefirot through which it discloses itself in structured form. Not a name of God in the usual sense: it is the negation of limitation applied to a reality that cannot be named at all. The compound Ein (there is not) Sof (end, limit, boundary) names what has no end. The term does not appear in the Torah or Talmud and appears first in the Provençal Kabbalistic literature of the twelfth century, making it a medieval theological innovation rather than an ancient term — though the conceptual pressure it answers (how to speak of a divine that cannot be named) is older.

In classical Kabbalah, Ein Sof is never directly addressed in prayer, never imaged in diagram, and rarely named in liturgy. The mystic approaches it only through the Sefirot, which are its self-disclosures. Lurianic Kabbalah develops the doctrine of tzimtzum — Ein Sof’s contraction or withdrawal — to account for how anything other than Ein Sof can exist at all, and the literal-or-metaphorical reading of tzimtzum becomes the central internal Kabbalistic debate.

Etymology

Ein (אין): negation particle, “there is not.” Sof (סוף): end, limit, conclusion. The compound is grammatically unusual — it negates a noun rather than a verb — which is itself a formal enactment of the apophatic logic the term embodies. The limitless is named by negating the concept of limit, with the negation operating on the boundary itself rather than on what the boundary contains. The construction has no exact biblical precedent and is recognizably medieval in syntax, marking the term as a deliberate philosophical-theological coinage of the early Kabbalistic period.

Usage across traditions

Tradition	Figure	Text	Specific sense	Citation
Jewish mysticism	Azriel of Gerona	Commentary on the Ten Sefirot	First systematic use as technical term for the divine ground prior to the Sefirot	Scholem, Origins pp. 265-268
Jewish mysticism	Zohar	Multiple passages	Ein Sof as the hidden ground from which the ten Sefirot emanate, never directly addressed	Matt, Pritzker edition vol. 1 intro
Jewish mysticism	Isaac Luria	Etz Chayyim	Tzimtzum as the act by which Ein Sof contracts to create space for creation	Scholem, Major Trends pp. 260-265
Islamic mysticism S	Ibn Arabi	Fusus al-Hikam	Ahadiyya as the station prior to all divine names — Andalusian contact possible	Austin trans. ch. 1
Hellenistic T	Plotinus	Enneads V.1	The One as beyond being and beyond intellect	MacKenna trans. V.1.6-8
Christian mysticism S	Pseudo-Dionysius	Mystical Theology	The divine darkness beyond being and non-being	Parker trans. ch. 5

Cross-tradition parallels marked T reflect documented historical transmission with the transmission channel named above. Parallels marked S reflect structural analogy: independent developments that converge on similar conceptual territory. The distinction is editorial not evaluative.

Jewish mysticism Azriel of Gerona

Commentary on the Ten Sefirot

First systematic use as technical term for the divine ground prior to the Sefirot

Scholem, Origins pp. 265-268

Jewish mysticism Zohar

Multiple passages

Ein Sof as the hidden ground from which the ten Sefirot emanate, never directly addressed

Matt, Pritzker edition vol. 1 intro

Jewish mysticism Isaac Luria

Etz Chayyim

Tzimtzum as the act by which Ein Sof contracts to create space for creation

Scholem, Major Trends pp. 260-265

Islamic mysticism S Ibn Arabi

Fusus al-Hikam

Ahadiyya as the station prior to all divine names — Andalusian contact possible

Austin trans. ch. 1

Hellenistic T Plotinus

Enneads V.1

The One as beyond being and beyond intellect

MacKenna trans. V.1.6-8

Christian mysticism S Pseudo-Dionysius

Mystical Theology

The divine darkness beyond being and non-being

Parker trans. ch. 5

Contested meanings

Whether Ein Sof is genuinely transcendent — ontologically prior to and separate from creation — or immanent in creation as the ground of all being, is the central debate in Kabbalistic theology and maps onto the broader pantheism question. Scholem argues the Zohar maintains genuine transcendence: Ein Sof is the wholly other from which the Sefirot emanate, and creation is structurally distinct from divinity. Idel’s reading finds more immanentist tendencies in the Zoharic and post-Zoharic material, with Ein Sof operating as the ground of being rather than as a separate ontological tier. The Lurianic tzimtzum is one attempt to resolve the tension and generates its own debates about whether the contraction is literal (Ein Sof genuinely withdrew, leaving a space empty of divinity) or metaphorical (the withdrawal is from the creature’s perspective only, and Ein Sof remains immanent throughout).

The literal/metaphorical tzimtzum debate has implications for theodicy. On the literal reading, genuine evil and finitude are possible because there is genuine space outside the divine. On the metaphorical reading, evil is an illusion of perspective and all apparent finitude is internal to Ein Sof.

Primary sources

• Sefer ha-Bahir §1 — the proto-Kabbalistic theosophy that the term Ein Sof systematizes.
• Azriel of Gerona, Commentary on the Ten Sefirot — the first systematic technical use (Scholem translation in Origins).
• Zohar I:1a — the Ein Sof never directly addressed but presupposed throughout.
• Etz Chayyim, Introduction — the Lurianic tzimtzum doctrine in its foundational form.

Scholarly literature

• Scholem, Origins of the Kabbalah, pp. 265-280 — foundational treatment of the term’s emergence in twelfth-century Provence.
• Idel, Kabbalah: New Perspectives, ch. 6 — the immanentist counter-reading.
• Matt, The Essential Kabbalah, pp. 24-30 — accessible primary-source presentation with citations.

Hekhal Editorial. "Ein Sof." Hekhal: An Open Reference for Esoteric Tradition. Last modified May 2, 2026. https://hekhal.org/lexicon/ein-sof.

Hekhal Editorial. 2026. "Ein Sof." Hekhal: An Open Reference for Esoteric Tradition. https://hekhal.org/lexicon/ein-sof.

Hekhal Editorial. "Ein Sof." Hekhal: An Open Reference for Esoteric Tradition, May 2, 2026, hekhal.org/lexicon/ein-sof.

Hekhal Editorial. (2026). Ein Sof. Hekhal: An Open Reference for Esoteric Tradition. https://hekhal.org/lexicon/ein-sof

@misc{hekhal-lexicon-ein-sof-2026,
  author       = {{Hekhal Editorial}},
  title        = {{Ein Sof}},
  year         = {2026},
  publisher    = {{Hekhal: An Open Reference for Esoteric Tradition}},
  url          = {https://hekhal.org/lexicon/ein-sof},
  urldate      = {[date accessed]}
}