João 20
Hilary of Poitiers · Comentário Patrístico (catena)
João 20:17
[(as quoted by Aquinas, AD 1274)] (de Trin.) Heretics, among their other impieties, misinterpret these words of our Lord's, and say, that if His Father is their Father, His God their God, He cannot be God Himself. But though He remained in the form of God, He took upon Him the form of a servant; and Christ says this in the form of a servant to men. And we cannot doubt that in so far as He is man, the Father is His Father in the same sense in which He is of other men, and God His God in like manner. Indeed He begins with saying, Go to My brethren. But God can only have brethren according to the flesh; the Only-Begotten God, being Only-Begotten, is without brethren. — Catena Aurea by Aquinas
João 20:26
The Lord stoops to the level even of our feeble understanding. He works a miracle of his invisible power in order to satisfy the doubts of unbelieving minds. Explain, my critic, the ways of heaven—explain his action if you can. The disciples were in a closed room. They had met and held their assembly in secret since the passion of the Lord. The Lord presents himself to strengthen the faith of Thomas by meeting his challenge. He gives him his body to feel, his wounds to handle. He, indeed, who would be recognized as having suffered wounds must necessarily produce the body in which those wounds were received. I ask at what point in the walls of that closed house the Lord bodily entered. The apostle has recorded the circumstances with careful precision: "Jesus came when the doors were shut and stood in the midst." Did he penetrate through bricks and mortar or through stout woodwork—substances whose very nature it is to bar progress? For there he stood in bodily presence; there was no suspicion of deceit. Let the eye of your mind follow his path as he enters. Let your intellectual vision accompany him as he passes into that closed dwelling. There is no breach in the walls; no door has been unbarred. Yet, see how he stands in the midst whose might no barrier can resist. You are a critic of things invisible; I ask you to explain a visible event. Everything remains firm as it was. No body is capable of insinuating itself through the interstices of wood and stone. The body of the Lord does not disperse itself, to come together again after a disappearance. Yet where does the one who is standing in their midst come from? Your senses and your words are powerless to account for it. The fact is certain, but it lies beyond the region of human explanation. If, as you say, our account of the divine birth is a lie, then prove that this account of the Lord's entrance is a fiction. If we assume that an event did not happen, because we cannot discover how it was done, we make the limits of our understanding into the limits of reality. But the certainty of the evidence proves the falsehood of our contradiction. The Lord did stand in a closed house in the midst of the disciples; the Son was born of the Father. Deny not that he stood, because your puny wits cannot ascertain how he came there; renounce instead a disbelief in God the only-begotten and perfect Son of God the unbegotten and perfect Father that is based only on the incapacity of sense and speech to comprehend. — ON THE TRINITY 3.20