Charles Ellicott Commentary John 9:37

"Jesus said unto him, Thou hast both seen him, and he it is that speaketh with thee." — John 9:37 (ASV)

Thou hast both seen him, and it is he that talketh with thee.—The answer reminds us of that to the woman of Samaria, I that speak unto thee am He (John 4:26); but here both the sense of sight and that of hearing are appealed to as conveying knowledge to the mind. There is a special fitness in the emphasis thus laid upon seeing Him, in the case of one whose very power to see was witness to the presence of the Messiah. The words do not refer to any earlier meeting, but the perfect tense refers to the completion of the act of vision and the abiding impression.