The Celestial Hierarchy

The Celestial Hierarchy is the treatise that gave the Christian tradition its standard ordering of the angels: nine ranks arranged in three triads — Seraphim, Cherubim, and Thrones; Dominions, Powers, and Authorities; Principalities, Archangels, and Angels — through which the one divine light is passed down from God to the world. This file reads that scheme, its scriptural sources, the threefold work of purification, illumination, and perfection that defines hierarchy, and the lasting influence of the Corpus on angelology East and West.

Tradition: Pan-Orthodox (the Corpus Areopagiticum)

Hierarchy Defined

The treatise opens by defining the word the author himself coined. A “hierarchy,” Dionysius writes, is “a sacred order, a state of understanding, and an activity approximating as closely as possible to the divine,” whose goal is that its members “become, so far as possible, like and one with God” (Celestial Hierarchy 3.1–2; trans. Luibheid–Rorem 1987). Hierarchy is therefore not a mere ranking of dignity but a structure of mediation and assimilation: the divine light flows from God, the source, through ordered ranks, each of which receives the illumination, is purified and perfected by it, and hands it on to the rank below, so that all may be drawn up toward likeness to God (Celestial Hierarchy 3.1–3; Rorem 1993). The whole point of order, for Dionysius, is deification — the graded communication of the one light so that every creature may share, in its measure, in God.

The principle that governs the descent is stated as a law: the divine ray cannot reach the lower except through the higher; God illumines the first ranks directly, and they in turn illumine those below them (Celestial Hierarchy 4.3; 8.2; Luibheid–Rorem 1987). This mediating logic is the spine of both hierarchies, celestial and ecclesiastical, and it is the most contested feature of the system in its later reception (see The Influence on the West).

The Three Triads

The treatise’s most famous contribution is its arrangement of the angelic beings named in Scripture into nine ranks, grouped in three triads, ordered by nearness to God (Celestial Hierarchy 6–9; Luibheid–Rorem 1987):

First and highest triad — the Seraphim, the Cherubim, and the Thrones: those nearest to God, gathered immediately around him, receiving the divine light at its source.
Second, middle triad — the Dominions (or Lordships), the Powers, and the Authorities: the orders of governance and order, receiving the light through the first triad.
Third and lowest triad — the Principalities (or Rulers), the Archangels, and the Angels: those nearest to the created world, who carry the divine illumination to human beings.

Dionysius derives each name from Scripture and reads its meaning from the Hebrew or Greek term: the Seraphim are the “burning ones,” aflame with love and casting their fire upon those below; the Cherubim signify the fullness of knowledge and the outpouring of wisdom; the Thrones are utterly free of earthly defect, lifted up and bearing God (Celestial Hierarchy 7.1; Luibheid–Rorem 1987). The lowest rank, the Angels proper, is the order most directly concerned with humanity — which is why Scripture so often speaks simply of “angels,” the messengers nearest to us (Celestial Hierarchy 9.1–2; Luibheid–Rorem 1987).

The Scriptural Sources

The nine names are not invented; each is drawn from the Bible, and the treatise is in large part an exegesis assembling them. The Seraphim come from Isaiah’s vision of the six-winged beings who cry “Holy, holy, holy” (Isaiah 6:2–3); the Cherubim from Genesis, Ezekiel, and the mercy-seat of the ark (Genesis 3:24; Ezekiel 10); the Thrones, Dominions, Principalities, Authorities, and Powers from the lists in the Pauline epistles (Colossians 1:16; Ephesians 1:21); the Archangels and Angels from across the Scriptures (Celestial Hierarchy 6.2; 7–9; Luibheid–Rorem 1987). Dionysius’s achievement was to gather these scattered scriptural names into a single ordered scheme of nine — a synthesis the Bible itself nowhere supplies, and which the author constructed by reading the apostolic lists through the structuring logic of his triadic hierarchy (Rorem 1993; Louth 1989).

Purification, Illumination, Perfection

Every hierarchy, celestial and ecclesiastical alike, operates through a threefold activity that Dionysius makes structural: purification (katharsis), illumination (phōtismos), and perfection (teleiōsis). The higher ranks purify, illumine, and perfect the lower; the lower are purified, illumined, and perfected (Celestial Hierarchy 3.2–3; 7.3; Luibheid–Rorem 1987). This triad of stages — taken up directly from the spiritual life of the soul — describes how the light is communicated: not as bare information but as a transforming gift that cleanses, enlightens, and brings to completion. The same threefold pattern will govern the Ecclesiastical Hierarchy, where the sacraments and orders of the Church accomplish on earth what the angelic ranks accomplish in heaven (see The Ecclesiastical Hierarchy). The continuity is the point: the Church’s liturgy is the prolongation of the heavenly hierarchy’s work.

Symbol and the Reading of Angelic Imagery

A substantial part of the treatise defends the strange, even lowly, imagery Scripture uses for the angels — fire, wheels, beasts, wings, weapons. Why does the Bible clothe the highest spiritual beings in such material figures? Dionysius answers that the very incongruity is protective: gross and obviously inadequate symbols keep the mind from mistaking the image for the reality, and so drive it upward, past the figure, toward the spiritual truth (Celestial Hierarchy 2.1–5; Luibheid–Rorem 1987). “Dissimilar similarities” — images so unlike their object that no one could rest in them — are thus theologically superior to noble images that might be mistaken for the thing itself. This treatment of symbol, worked out here for the angels, is one of the Corpus’s most fertile contributions and underlies the whole Dionysian theology of the sensible mediation of the divine (Rorem 1993; on its sacramental application, see The Ecclesiastical Hierarchy).

The Source of Christian Angelology

The ninefold scheme of The Celestial Hierarchy became the standard ordering of the angels for the whole Christian tradition, East and West. In the East it was absorbed by John of Damascus, whose Exposition of the Orthodox Faith transmits the Dionysian nine ranks as settled teaching (see St. John of Damascus), and it stands behind the angelology of Byzantine hymnography and iconography. In the West it passed through Gregory the Great and the medieval schools — Aquinas devotes careful attention to the Dionysian orders — into the common imagination of Latin Christendom, and through it into Dante and Milton (see The Influence on the West; Rorem 1993; Louth 1989). When later Christians speak without further thought of “seraphim and cherubim … thrones, dominions, powers” descending to “archangels and angels,” they are repeating Dionysius. [Disputed: the *exact* order and grouping of the nine ranks varies slightly across the tradition — e.g., some Eastern and Western lists differ in the placement of Virtues/Powers and Principalities — and Dionysius's particular sequence is his synthesis rather than a unanimous prior tradition; the ninefold scheme as such, however, became standard through the Corpus (Rorem 1993)]. That the source of so universal a scheme is a pseudonymous author of c. 500 is among the more striking facts of the Corpus’s influence (see The Theological Assessment).

References

Pseudo-Dionysius. The Celestial Hierarchy, in The Complete Works. Trans. Colm Luibheid and Paul Rorem. New York: Paulist Press, 1987. (The definition of hierarchy at 3.1–3; the mediating law at 4.3 and 8.2; the nine ranks in three triads at 6–9; the Seraphim, Cherubim, Thrones at 7.1; purification, illumination, perfection at 3.2–3; “dissimilar similarities” and the defense of imagery at 2.1–5.)
Isaiah 6:2–3; Genesis 3:24; Ezekiel 10; Colossians 1:16; Ephesians 1:21. (The scriptural names of the angelic ranks.)
Rorem, Paul. Pseudo-Dionysius: A Commentary. New York: Oxford University Press, 1993. (The triadic scheme; the theology of symbol; the angelological legacy.)
Louth, Andrew. Denys the Areopagite. London: Geoffrey Chapman, 1989. (Hierarchy as mediation and assimilation; the reception of the angelic orders.)