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.
In falling upon his face he marked his humility and modesty, for every one should blush at the stains of his life, but his reverence kept not back his confession, he shews his wound, and asks for a remedy, saying, If thou wilt, thou canst make me clean. Of the will of the Lord he doubted, not from distrust of His mercy, but checked by the consciousness of his own unworthiness. But the confession is one full of devotion and faith, placing all power in the will of the Lord.