Kedushah קדושה

Kedushah (קדושה, “sanctification”) is the angelic hymn of holiness — the threefold kadosh, kadosh, kadosh (“holy, holy, holy”) of Isaiah 6:3, sung by the seraphim and the chayyot before the throne, and recapitulated by the human worshipper in liturgical prayer. In the Heikhalot corpus the kedushah is at the heart of the participatory-theurgic register: the descender’s recited kedushah is understood to be the same kedushah the chayyot perform, so that the human practitioner joins the angelic chorus rather than merely imitating it. The hymn is thus the point where the boundary between the human and the angelic, the liturgical and the theurgic, is deliberately blurred.

Etymology

From the root Q-D-SH, “to be holy, set apart, consecrated” — the root of kadosh (holy), kodesh (holiness, the sanctuary), mikdash (temple), and kiddush (sanctification of the sabbath). Kedushah as a noun names the act or state of sanctification. As a liturgical technical term it names specifically the prayer-unit built around the seraphic kadosh-formula.

Why not “sanctity” or “sacredness”

The controlled rendering is sanctification, and sacredness and sanctity are excluded. The abstract nouns “sanctity” and “sacredness” name a static quality, whereas the kedushah is an act — the performed proclamation of holiness, the verbal making-holy that the angels enact and the worshipper joins. “Sanctification” preserves this verbal, performative force. Holiness is admissible where the abstract-quality sense is in view; Kedushah-hymn where the liturgical performance specifically is meant.

Contested meanings

The kedushah is the clearest case where the Heikhalot theurgic register and the rabbinic prayer-register interpenetrate. Petitionary-devotional prayer addresses the divine; theurgic recitation performs operations; the kedushah is both, since the human recitation is held to be participation in the ongoing angelic liturgy of the throne-world. Schäfer (The Hidden and Manifest God, 1992) noted the coexistence of the magical-theurgic and the devotional-petitionary registers in the corpus, and the kedushah is the seam where they join. The relation between the Heikhalot hymnic material (the Qedushah hymns, the Shir ha-Kavod tradition) and the standard synagogal kedushah is extensively studied.

Primary sources

• Isaiah 6:3 — “holy, holy, holy is YHWH of hosts; the whole earth is full of his glory,” the source-text.
• Ezekiel 3:12 — “blessed be the glory of YHWH from his place,” the second element of the synagogal kedushah.
• Heikhalot Rabbati — the hymnic-ecstatic material in which the angelic kedushah is described and joined.

Scholarly literature

• Peter Schäfer, The Hidden and Manifest God (SUNY Press, 1992) — the interpenetration of theurgic and devotional registers.
• Michael D. Swartz, Scholastic Magic (Princeton, 1996) — Heikhalot hymnology and liturgy.

Hekhal Editorial. "Kedushah." Hekhal: An Open Reference for Esoteric Tradition. Last modified May 2, 2026. https://hekhal.org/lexicon/kedushah.

Hekhal Editorial. 2026. "Kedushah." Hekhal: An Open Reference for Esoteric Tradition. https://hekhal.org/lexicon/kedushah.

Hekhal Editorial. "Kedushah." Hekhal: An Open Reference for Esoteric Tradition, May 2, 2026, hekhal.org/lexicon/kedushah.

Hekhal Editorial. (2026). Kedushah. Hekhal: An Open Reference for Esoteric Tradition. https://hekhal.org/lexicon/kedushah

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