34 But the Pharisees said, He casteth out devils through the prince of the devils.
[AD 367] Hilary of Poitiers on Matthew 9:32-35
The natural order of things is here preserved; the dæmon is first cast out, and there the functions of the members proceed. And the multitude marvelled, saying, It was never so seen in Israel.

Or; By the dumb and deaf, and dæmoniae, is signified the Gentile world, needing health in every part; for sunk in evil of every kind, they are afflicted with disease of every part of the body.

But by the knowledge of God the frenzy of superstition being chased away, the sight, the hearing, and the word of salvation is brought in to them.

The wonder of the multitude is followed up by the confession, It was never so seen in Israel; because he, for whom there was no help under the Law, is saved by the power of the Word.

[AD 407] John Chrysostom on Matthew 9:32-35
This was not a mere natural defect; but was from the malignity of the dæmon; and therefore he needed to be brought of others, for he could not ask any thing of others as living without voice, and the dæmon chaining his spirit together with his tongue. Therefore Christ does not require faith of him, but immediately healed his disorder; as it follows, And when the dæmon was cast out, the dumb spake.

They set Him thus above others, because He not only healed, but with such ease, and quickness; and cured diseases both infinite in number, and in quality incurable. This most grieved the Pharisees, that they set Him before all others, not only those that then lived, but all who had lived before, on which account it follows, But the Pharisees said, He casteth out dæmons through the Prince of dæmons.

What can be more foolish than this speech of theirs? For it cannot be pretended that one dæmon would cast out another; for they are wont to consent to one another's deeds, and not to be at variance among themselves. But Christ not only cast out dæmons, but healed the lepers, raised the dead, forgave sins, preached the kingdom of God, and brought men to the Father, which a dæmon neither could nor would do.

[AD 420] Jerome on Matthew 9:32-35
The Greek word here (κωφὸς) is more frequent in common speech in the sense of 'deaf,' but it is the manner of Scripture to use it indifferently as either.

As the blind receive light, so the tongue of the dumb is loosed, that he may confess Him whom before he denied. The wonder of the multitude is the confession of the nations. The scoff of the Pharisees is the unbelief of the Jews, which is to this day.

[AD 430] Augustine of Hippo on Matthew 9:32-35
(De Cons. Ev. ii. 29.) This account of the two blind men and the dumb dæmon is read in Matthew only. The two blind men of whom the others speak are not the same as these, though something similar was done with them. So that even if Matthew had not also recorded their cure, we might have seen that this present narrative was of a different transaction. And this we ought diligently to remember, that many actions of our Lord are very much like one another, but are proved not to be the same action, by being both related at different times by the same Evangelist. So that when we find cases in which one is recorded by one Evangelist, and another by another, and some difference which we cannot reconcile between their accounts, we should suppose that they are like, but not the same, events.

[AD 533] Remigius of Rheims on Matthew 9:32-35
Observe the beautiful order of His miracles; how after He had given sight to the blind, He restored speech to the dumb, and healed the possessed of the dæmon; by which He shows Himself the Lord of power, and the author of the heavenly medicine. For it was said by Isaiah, Then shall the eyes of the blind be opened, the ears of the deaf shall be unstopped, and the tongue of the dumb loosed. (Is. 35:6.) Whence it is said, When they were gone forth, they brought unto him a man dumb, and possessed with a dæmon.

Thus the Scribes and Pharisees denied such of the Lord's miracles as they could deny; and such as they could not they explained by an evil interpretation, according to that, In the multitude of thy excellency thy enemies shall lie unto thee. (Ps. 66:3.)

For the Gentiles were dumb; not being able to open their mouth in the confession of the true faith, and the praises of the Creator, or because in paying worship to dumb idols they were made like unto them. They were afflicted with a dæmon, because by dying in unbelief they were made subject to the power of the Devil.

They who brought the dumb to be healed by the Lord, signify the Apostles and preachers, who brought the Gentile people to be saved before the face of divine mercy.

[AD 856] Rabanus Maurus on Matthew 9:32-35
The house of the ruler is the Synagogue which was ruled by Moses; the house of Jesus is the heavenly Jerusalem. As the Lord passed through this world and was returning to His own house, two blind men followed Him; that is, when the Gospel was preached by the Apostles, many of the Jews and Gentiles began to follow Him. But when He ascended into Heaven, then He entered His house, that is, into the confession of one faith which is in the Catholic Church, and in that they were enlightened.

Figuratively; As in the two blind men were denoted both nations, Jews and Gentiles, so in the man dumb and afflicted with the dæmon is denoted the whole human race.

[AD 420] Jerome on Matthew 9:33-34
(Verse 33, 34.) And the crowds marveled, saying: Never has it appeared like this in Israel. But the Pharisees said: By the prince of demons he casts out demons. The crowd confesses the works of God, and says: Never has it appeared like this in Israel. In the crowd, there is a confession of the nations. But because the Pharisees could not deny the power of God, they slandered his works and said: By the prince of demons he casts out demons, thus demonstrating the unbelief of the Jews through their slander even today.

[AD 407] John Chrysostom on Matthew 9:34
Now this healing especially vexed the Pharisees. They were disturbed that Jesus was being exalted above all others, not only those who are but all who had ever been. For he did what he did so easily and quickly. He cured diseases innumerable and otherwise incurable. The crowd exalted him. But the Pharisees continued to disparage his works, contradicting themselves unashamedly. Such a thing is wickedness—which finds itself desperately saying, “He casts out demons by the prince of demons.”What could be more absurd than this! For in the first place, as he also says later on, it is impossible for demons to cast out demons. For it is a demon’s custom to clap in applause at the activities of his own kind, not oppose them. Second, not only did he himself cast out demons, but he also purified lepers, raised dead people, reined in the sea, canceled sins, proclaimed the kingdom and approached the Father. Demons would never choose to do these things and would not ever be able to accomplish them.

[AD 1107] Theophylact of Ohrid on Matthew 9:34
These words are the height of stupidity, for no demon casts out other demons. But let us suppose that He cast out demons as one who served the prince of demons, that is, as a magician. How then did He heal diseases, forgive sins, and preach the Kingdom? For the demon does just the opposite: he brings on diseases and separates man from God.
[AD 1107] Theophylact of Ohrid on Matthew 9:34
These words are the height of stupidity. For no demon casts out other demons. But let us suppose that He cast out demons as one who served the prince of demons, that is, as a magician. How then did He heal diseases, forgive sins, and preach the kingdom? For the demon does just the opposite: he brings on diseases and separates man from God.