Opening
Two centuries after Chalcedon (451) defined the two natures of Christ in one Person, the Christological question reopened on a narrower point: Did Christ, in his single Person, have one will or two? The seventh-century controversy is technical, but the stakes are enormous: if Christ has only a divine will, he has no real human freedom, and the redemption that the Fathers described in Gethsemane — "not as I will, but as thou wilt" Matt 26:39 — collapses.
This article reports the controversy, the conciliar definition at Constantinople III (681), and what it secured. LV reports; it does not teach.
1. The narrow question
After Chalcedon's "two natures, one Person" was received, a question remained: how do operations and willing distribute across the natures and the Person? Two opposing answers emerged:
Monothelitism (one-will-ism, μονοθελητισμός) — that the one Person of Christ has only one will, the divine. The Person wills divinely, and the human nature follows passively. Promoted in the seventh century as a compromise to reconcile Monophysites with Chalcedonians, supported by Patriarch Sergius I of Constantinople and (in a contested document) Pope Honorius I.
Dyothelitism (two-will-ism) — that Christ has two wills, divine and human, corresponding to his two natures. The two wills are not opposed; the human will follows the divine, but it is a real human will, not a passive instrument.
The pivotal text is Gethsemane: "Father, if it be possible, let this chalice pass from me. Nevertheless, not as I will, but as thou wilt" Matt 26:39. I will, thou wilt — the same Person speaks of two wills.
2. The patristic consensus before the controversy
The Cappadocians had already held the principle. Gregory of Nazianzus's Letter to Cledonius states the rule: "What has not been assumed has not been healed; what is united to God is saved" Gregory of Nazianzus, Letter to Cledonius. If Christ assumed a human soul without assuming a human will, the human will is not redeemed — for the will is the seat of moral agency, and to be unredeemed in the will is to be unredeemed precisely where redemption is needed.
Maximus the Confessor (c. 580-662) is the doctor of the doctrine. He read Gethsemane, the Garden, the cry from the Cross — "My God, my God, why hast thou forsaken me?" Matt 27:46 — as testimony of a real human will. In the Disputation with Pyrrhus, Maximus argued that to deny Christ a human will is to deny him a complete human nature Maximus the Confessor, Disputation with Pyrrhus. Maximus paid for the doctrine with his hand, his tongue, and his life: he was mutilated and exiled by Constans II for refusing to sign the Monothelite formula.
3. The Third Council of Constantinople (681)
Constantinople III defined dyothelitism in solemn conciliar form:
"We likewise declare that in him are two natural wills and two natural operations indivisibly, inconvertibly, inseparably, inconfusedly, according to the teaching of the holy Fathers. And these two natural wills are not contrary the one to the other (God forbid!) as the impious heretics assert, but his human will follows and that not as resisting and reluctant, but rather as subject to his divine and omnipotent will." 556
The four adverbs of Chalcedon return — indivisibly, inconvertibly, inseparably, inconfusedly — now applied to the wills and operations.
The Council additionally condemned by name Sergius, Cyrus, Pyrrhus, Paul, Peter, Theodore, and — controversially — Pope Honorius I, "because in all things he followed [Sergius'] view and confirmed his impious doctrines" 552. Honorius's case has been a long Catholic discussion: whether his letters to Sergius were a personal opinion (which is the standard Catholic reading) or a magisterial act (which would create a difficulty for papal infallibility, addressed at Vatican I 1870 and resolved by limiting infallibility to ex cathedra definitions on faith and morals — a category Honorius's pastoral letters do not meet).
4. The Catechism's transmission
The Catechism summarises the doctrine in compact form: "Christ's human will 'does not resist or oppose but rather submits to his divine and almighty will'" §475, directly quoting Constantinople III. Christ "freely embraced [the Father's plan of love and mercy], 'going forth to meet his Passion'" — the freedom is real human freedom, not a divine override of a passive human nature.
The doctrine is not academic. The Garden, the agony, the bloody sweat — all of these presuppose a real human will, weighing real human alternatives, freely yielding to the Father's will. A Christ without a human will would have no Gethsemane, and a redemption without Gethsemane is not the redemption the Gospel describes.
5. What dyothelitism secures
The reality of the Incarnation. Without a human will, the human nature is incomplete; the Word would have assumed a body and a soul without the principal faculty of the soul. Gregory of Nazianzus's principle bites: what has not been assumed has not been healed Gregory of Nazianzus, Letter to Cledonius.
The reality of the redemption. Christ redeems by his human obedience: "as by the disobedience of one man, many were made sinners; so also by the obedience of one, many shall be made just" Rom 5:19. Obedience is an act of will. If Christ has only a divine will, his "obedience" is the divine will obeying itself — a logical absurdity. Real human obedience requires a real human will.
The reality of human freedom in grace. Because the human will of Christ is real and freely yielded to the divine, the human will of every redeemed person can be sanctified — moved by grace, not annihilated. The two wills in Christ are the prototype of the redeemed human will: not erased by grace, but elevated and freely conformed to it.
6. What this article does not claim
It does not enter the technical disputes over Honorius (Vatican I addressed this directly at Pastor Aeternus; a separate article will treat his case). It does not adjudicate the contemporary scholarship on Maximus's reception in Eastern theology (Bathrellos, Larchet) and its ecumenical implications. It does not develop the related doctrine of Christ's beatific vision (a contested topic among contemporary theologians).
Closing
The Third Council of Constantinople secured what Chalcedon had begun: that Christ is fully and truly human, in nature and in operation and in will. The Garden of Gethsemane is not a script; it is a real human will, freely yielding. The doctrine looks technical but its consequence is total — without it, redemption is a divine pageant, not a human victory. With it, the human will is permanently included in the saving event of the Cross.
— The Editors, LumenVeritatis