Gregory the Great
Catena Aurea · Matthäusevangelium 9
And when Jesus departed thence, two blind men followed him, crying, and saying, Thou Son of David, have mercy on us. And when he was come into the house, the blind men came to him: and Jesus saith unto them, Believe ye that I am able to do this? They said unto him, Yea, Lord. Then touched he their eyes, saying, According to your faith be it unto you. And their eyes were opened: and Jesus straitly charged them, saying, See that no man know it. But they, when they were departed, spread abroad his fame in all that country.
(Mor. xix. 23.) 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.