John Chrysostom

"Since the world began was it not heard that any man opened the eyes of one that was born blind." "If now ye acknowledge that God heareth not sinners, and this Person hath wrought a miracle, and such a miracle as no man ever wrought, it is clear that He hath surpassed all things in virtue, and that His power is greater than belongeth to man."

Homily on the Gospel of John 58 ↗

Cyril of Alexandria

Pained as it seems very keenly, and grieving as we may say over their revilings against Christ, so as to be vexed beyond endurance because they contemptuously said; Thou art His disciple, but we are disciples of Moses, he is eager to speak on behalf of his Master; hence he draws a sort of comparison between the achievements of Moses and the brilliant deeds of Our Saviour, showing that as the latter is greater in wonder-working, so far He is the better. …

Commentary on the Gospel of John, Book 6 ↗

Theophylact of Ohrid

Furthermore, knowing that they want to obscure the miracle, he preaches about the benefaction with full understanding. If, perhaps, the eyes of the blind were opened, it was not eyes damaged from birth, but from some illness. But what has now taken place is an unheard-of thing.

Commentary on John ↗

Augustine of Hippo

Freely, stedfastly, truly. For how could what our Lord did, be done by any other than God, or by disciples even, except when their Lord dwelt in them?

Catena Aurea by Aquinas ↗

Thomas Aquinas

1351 Here he takes the minor premise of his argument. He is saying: Because of what Christ did, which no man has ever done, it is obvious that he did this by the action of God, and that he has been heard by God: "If I had not done among them the works which no one else did, they would not have sin" (Jn 15:24).

Commentary on John ↗

Bonaventure

From the beginning of the world it has not been heard that anyone opened the eyes of one born blind; but this man opened them: therefore he is from God, because from the destruction of the consequent.

Commentary on John, Chapter 9 ↗