Catena Aurea on Matthew 9:27–31: Gregory the Great

We must enquire how this is that the Almighty, whose will and power are coextensive, should have here willed that His excellent works should be hid in silence, and is yet preached against His will, as it were, by these men who have received their sight. It is only that He herein has left an example to His servants who follow Him, that they should desire their own good deeds to be hid, and that notwithstanding they should be made known against their will, that others may profit by their example. They should then be hid by design, and published of compulsion; their concealment is by our own watchfulness, their betrayal is for others’ profit.