John Chrysostom — as excerpted in the Catena Aurea on John 9:8-17

“(Hom. lvii. s. 2) He was not ashamed of his former blindness, nor afraid of the fury of the people, nor averse to shew himself, and proclaim his Benefactor. Therefore said they unto him, How were thine eyes opened? How they were, neither he nor any one knew: he only knew the fact; he could not explain it. He answered and said, A man that is called Jesus made clay, and anointed mine eyes. Mark his exactness. He does not say how the clay was made; for he could not see that our Lord spat on the ground; he does not say what he does not know; but that He anointed him he could feel. And said unto me, Go to the pool of Siloam, and wash. This too he could declare from his own hearing; for he had heard our Lord converse with His disciples, and so knew His voice. Lastly, he shews how strictly he had obeyed our Lord. He adds, And I went, and washed, and received sight.”