Ambrose of Milan
Catena Aurea · Lukasevangelium 5
And it came to pass, when he was in a certain city, behold a man full of leprosy: who seeing Jesus fell on his face, and besought him, saying, Lord, if thou wilt, thou canst make me clean. And he put forth his hand, and touched him, saying, I will: be thou clean. And immediately the leprosy departed from him. And he charged him to tell no man: but go, and shew thyself to the Priest, and offer for thy cleansing, according as Moses commanded, for a testimony unto them. But so much the more went there a fame abroad of him: and great multitudes came together to hear, and to be healed by him of their infirmities. And he withdrew himself into the wilderness, and prayed.
He says then, I will, for Photinus, He commands, for Arius, He touches, for Manichæus. But there is nothing intervening between God’s work and His command, that we may see in the inclination of the healer the power of the work. Hence it follows, And immediately the leprosy departed from him. But lest leprosy should become rife among us, let each avoid boasting after the example of our Lord’s humility. For it follows, And he commanded him that he should tell it to no one, that in truth he might teach us that our good deeds are not to be made public, but to be rather concealed, that we should abstain not only from gaining money, but even favour. Or perhaps the cause of His commanding silence was that He thought those to be preferred, who had rather believed of their own accord than from the hope of benefit.