John 9:8

8.Then the neighbors, and those who had formerly seen him. The blind man was known not only to the neighbors, but to all the inhabitants of the town, having been wont to sit and beg at the gate of the temple; and the common people look more readily at such persons than at others. This circumstance — of the man being known — contributed to make many people acquainted with the fame of the miracle. But, as impiety is ingenious in obscuring the works of God, many thought that it was not the same man, because a new power of God openly appeared in him. Thus we find that the more brightly the majesty of God is displayed in his works, the less credit do they obtain among men. But the doubts of those men aided in proving the miracle, for, in consequence of those doubts, the blind man celebrated more highly the grace of Christ by his testimony. It is not without good reason, therefore, that the Evangelist brings together all those circumstances which seemed to exhibit more clearly the truth of the miracle.