Origen
Catena Aurea · Johannesevangelium 4
And many of the Samaritans of that city believed on him for the saying of the woman, which testified, He told me all that ever I did. So when the Samaritans were come unto him, they besought him that he would tarry with them: and he abode there two days. And many more believed because of his own word; And said unto the woman, Now we believe, not because of thy saying: for we have heard him ourselves, and know that this is indeed the Christ, the Saviour of the world.
(tom. xiii. c. 52) For it is impossible that the same impression should be produced by hearing from one who has seen, and seeing one’s self; walking by sight is different from walking by faith. The Samaritans now do not believe only from testimony, but from really seeing the truth.