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St. Cyril of Alexandria
St. Cyril of Alexandria (c. 376–444). Born around 376 in Alexandria, Egypt, likely in Theadelphia, Cyril was a Christian theologian, bishop, and Doctor of the Church renowned for defending Christ’s divinity. Raised in a devout family—his uncle Theophilus was Alexandria’s patriarch—he studied Scripture and rhetoric, possibly under Didymus the Blind, and was ordained a priest. In 412, succeeding Theophilus as patriarch, he led the influential See of Alexandria, wielding authority in a turbulent era. His preaching, delivered in Greek, clarified Trinitarian and Christological doctrines, notably against Nestorius, whose teachings Cyril opposed at the Council of Ephesus (431), securing the title Theotokos (Mother of God) for Mary and affirming Christ’s unified divine-human nature. Cyril’s extensive writings include On the Unity of Christ, Against Nestorius, and commentaries on John, Luke, and Hebrews, shaping Eastern and Western theology. Earlier, he faced criticism for expelling Jews from Alexandria in 415 amid riots and for his role in the mob killing of philosopher Hypatia, though direct responsibility is debated. A skilled apologist, he refuted Julian the Apostate’s Against the Galileans. Unmarried, as a celibate bishop, he died on June 27, 444, in Alexandria, leaving no family but a vast legacy. Cyril said, “Christ is one person, uniting in Himself the fullness of God and man.”
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St. Cyril of Alexandria preaches about the necessity for believers to share in the divine nature of the Word by being transformed through the Holy Spirit to live a new life pleasing to God. The sending of the Spirit after Christ's departure was crucial for believers to be united with Him and grow in holiness, fortifying them against spiritual battles. Through examples from the Old and New Testaments, it is evident that the Spirit changes individuals, making them other-worldly in outlook and courageous in the face of adversity.
Holy Spirit Transforms Our Lives
After Christ had completed his mission on earth, it still remained necessary for us to become sharers in the divine nature of the Word. We had to give up our own life and be so transformed that we would begin to live an entirely new kind of life that would be pleasing to God. This was something we could do only by sharing in the Holy Spirit. It was most fitting that the sending of the Spirit and his descent upon us should take place after the departure of Christ our Savior. As long as Christ was with them in the flesh, it must have seemed to believers that they possessed every blessing in him; but when the time came for him to ascend to his heavenly Father, it was necessary for him to be united through his Spirit to those who worshiped him, and to dwell in our hearts through faith. Only by his own presence within us in this way could he give us confidence to cry out, Abba, Father, make it easy for us to grow in holiness and, through our possession of the all-powerful Spirit, fortify us invincibly against the wiles of the devil and the assaults of men. It can easily be shown from examples both in the Old Testament and the New that the Spirit changes those in whom he comes to dwell; he so transforms them that they begin to live a completely new kind of life. Saul was told by the prophet Samuel: The Spirit of the Lord will take possession of you, and you shall be changed into another man. Saint Paul writes: As we behold the glory of the Lord with unveiled faces, that glory, which comes from the Lord who is the Spirit, transforms us all into his own likeness, from one degree of glory to another. Does this not show that the Spirit changes those in whom he comes to dwell and alters the whole pattern of their lives? With the Spirit within them it is quite natural for people who had been absorbed by the things of this world to become entirely other-worldly in outlook, and for cowards to become men of great courage. There can be no doubt that this is what happened to the disciples. The strength they received from the Spirit enabled them to hold firmly to the love of Christ, facing the violence of their persecutors unafraid. Very true, then, was our Savior’s saying that it was to their advantage for him to return to heaven: his return was the time appointed for the descent of the Holy Spirit.
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St. Cyril of Alexandria (c. 376–444). Born around 376 in Alexandria, Egypt, likely in Theadelphia, Cyril was a Christian theologian, bishop, and Doctor of the Church renowned for defending Christ’s divinity. Raised in a devout family—his uncle Theophilus was Alexandria’s patriarch—he studied Scripture and rhetoric, possibly under Didymus the Blind, and was ordained a priest. In 412, succeeding Theophilus as patriarch, he led the influential See of Alexandria, wielding authority in a turbulent era. His preaching, delivered in Greek, clarified Trinitarian and Christological doctrines, notably against Nestorius, whose teachings Cyril opposed at the Council of Ephesus (431), securing the title Theotokos (Mother of God) for Mary and affirming Christ’s unified divine-human nature. Cyril’s extensive writings include On the Unity of Christ, Against Nestorius, and commentaries on John, Luke, and Hebrews, shaping Eastern and Western theology. Earlier, he faced criticism for expelling Jews from Alexandria in 415 amid riots and for his role in the mob killing of philosopher Hypatia, though direct responsibility is debated. A skilled apologist, he refuted Julian the Apostate’s Against the Galileans. Unmarried, as a celibate bishop, he died on June 27, 444, in Alexandria, leaving no family but a vast legacy. Cyril said, “Christ is one person, uniting in Himself the fullness of God and man.”