John Chrysostom — as excerpted in the Catena Aurea on Matthew 12:14-21

“And that you may not be troubled at those things which are done, and at the incredible madness of the Pharisees, He introduces the Prophet’s words. For such was the carefulness of the Prophets, that they had not omitted even this, but had noted all His ways and movements, and the meaning with which He did this; that you might learn that He spoke all things by the Holy Spirit, for if it be impossible to know the thoughts of men, much more to know the meaning of Christ, unless the Holy Spirit revealed it. Therefore it follows, That it might be fulfilled which was spoken by Esaias the Prophet, saying, Behold my servant whom I have chosen.”