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John Cassian: Half-Heretic or Saint?

Deacon Pavel Serzhantov

This ascetic’s fate is unusual. We are accustomed to his works being studied amongst the other works of the Latin Fathers of the Church. We call him “the Roman,” although in antiquity he was called “the Scythian.” He labored much in the Christian West, although of crucial importance for him was the Christian East, including the monasteries of Egypt and the Holy Land. Therefore, he can be called an Eastern Father who wrote in the West and in Latin.

In the Christian East he is recognized as a saint, but in the West they consider him a Semi-Pelagian. There was a heresy, Pelagianism, which St. Augustine of Hippo, the most famous theologian, fought against. The dispute was about salvation.

The subject of the Pelagian debates is complex, and I am obliged to present it in a highly-simplified form. What power saves a man? Pelagius placed man’s effort at the forefront, diminishing the role of God’s power. Pelagius believed that God’s acts give man an inspirational example for correcting his life, beyond which nothing more is needed. St. Augustine was a stranger to such an underestimation of sin, understanding that sinfulness limits our possibilities, causing our will to waver. St. Augustine placed the saving power of God at the forefront, but underestimated the importance of human effort in the work of salvation.

Thus, the positions of Pelagius and St. Augustine were opposed; they are at opposite extremes. Besides these extreme positions during the Pelagian controversy, a moderate position was delineated, as expressed by the Roman-Scythian himself, St. John Cassian. This middle position diminished neither the value of God’s work nor of human efforts, showing that the work of salvation is completed by God and mantogether.

How did the controversy end? Pelagianism was justly condemned. In the West, St. Augustine’s position prevailed. If we stand on St. Augustine’s position, then that of St. John Cassian becomes not wholly acceptable, inclining more towards Pelagianism than does St. Augustine’s, although not coinciding with Pelagianism. Western scholars still call St. John “Semi-Pelagian”that is, a half-heretic. We can in no way agree with this.

St. John Cassian expressed not simply his own theological opinion, but gave voice to the experience of the hesychastic monks’ ascetical experience of synergy. Striving for their own salvation, the hesychasts saw and understood that asceticism is salvific then and only then when two powers are at work within it in harmonythe Divine and the human. God and man are co-workers in the cause of salvation; their synergy leads sinners into the Heavenly Kingdom.

Thus, St. John Cassian simply expounded the dogma of synergy. This teaching was not born from idle speculation, but in desert asceticism. Here is a small quote from St. John, so we can feel the full spiritual beauty and exactness of his argument on salvation: “Both the grace of God and our free will participate in the work of salvation although man can at times of himself seek for virtues, he is ever in need of God’s aid to fulfill this desire, just as for the sick the desire alone to be healthy is inadequate, but it is necessary that God, the giver of life, give strength for health” (Conferences 13.9).

Sin must not be underestimated. Sin is like a serious illness which man himself is unable to manage. If he will understand that he is sick with sin, he will actively seek the help of God, to recover and live in God forever. The Lord responds with grace to such a desire from a sinful man, healing his sinful passion, supporting him in his virtuous acts, and giving him new life.

St. John Cassian’s testimony of the synergy of God and man is the word of a saint, not a half-heretic.

Deacon Pavel Serzhantov
Translated by Jesse Dominick


13 / 03 / 2017

See also:
"In the Christian East he is recognized as a saint, but in the West they consider him a Semi-Pelagian."

With all due respect, St. John Cassian is recognized as a saint in the Roman Catholic Church, the Anglican Communion, and a number of other protestant denominations. His feast day is July 23. He is not on the General Roman Calendar, but then again, neither are most saints. I have never read any source (Western or otherwise) condemn him as a "half-heretic." Who are these supposed scholars?
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