John Chrysostom

But not in this way only doth He show His authority, but also by His healing divers infirmities. "For the blind and the tame came unto Him, and He healed them," and His power and authority He indicates.

Homily on the Gospel of Matthew 67 ↗

Theophylact of Ohrid

By healing the infirm He shows that He is God and that rightly does He use His authority to cast out the unworthy from His house. It is also made clear that when the Jews who were attached to the law and to animal slaughter had been cast out, then the blind and the lame of the Gentiles were accepted as His friends and healed by Him.

Commentary on Matthew ↗

Jerome

And the blind and the lame came to him in the temple, and he healed them. If he had not overturned the tables of the money changers and the chairs of those selling doves, the blind and the lame would not have deserved to receive their former sight and the ability to walk.

Commentary on Matthew ↗

Thomas Aquinas

"And there came to him the blind and the lame." Here is presented what pertains to the glory of Christ with respect to the healing of the sick. The blind who are in the temple signify those who are blinded by ignorance. Isa 59:10: "We have groped for the wall as the blind." The lame are those who walk in the ways of the wicked. 3 Kings 17:28: "How long do you halt between two sides?" And they come to Christ in the temple, and he heals them. …

Commentary on Matthew ↗

Remigius of Rheims

That they are healed in the Temple signifies, that men cannot be healed but in the Church, to which is given the power of binding and loosing.

Catena Aurea by Aquinas ↗