John Gill 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)

And Jesus said to him
Giving him the tokens by which he might know him: you have both seen him; not that he had seen him before now, with his bodily eyes; for he was blind when Christ anointed him, and sent him to Siloam to wash; nor when he came back, since Jesus was gone, and he knew not where he was; but he had seen him, that is, he had perceived and felt the power of him in restoring him to sight; and now he had seen him bodily, and did at this present time: but as this was not sufficient to distinguish him from other persons in company, he adds,

and it is he that talks with you ;
in like manner he made himself known to the woman of Samaria, (John 4:26) .