First, the blind man is brought to the Pharisees and placed before the assembly (v. 14), which could not have taken place in the ordinary order of things on the Sabbath.
Second, from verses 7 and 12 we see that the man who received sight either did not return to the Lord, or, more probably, did not find Him when he came to thank Him.
For when asked, "Where is He?" the man who received sight answered, "I do not know." From this one must conclude that on the Sabbath, the day he received sight, he did not see the Lord.
Otherwise, of course, he would have recognized Him in the temple when the Lord Himself found him (v. 35).
The whole narrative is plainly recorded by an eyewitness of the events. It tells how the man born blind sat and begged, how his neighbors questioned him, how they brought him to the Pharisees, and how he answered before the assembly.
This eyewitness received some of these details from the healed man's own lips, and saw and heard the rest personally. The eyewitness was certainly the Evangelist John.
In all probability, John himself spoke with the man who had received sight after the Lord found him in the temple, and after he worshiped the Lord and confessed Him to be the Christ (v. 38).
It must be added that the neighbors most likely brought the man who received sight not to the supreme court, the Sanhedrin, but to the synagogue.
Apart from its significance as a religious assembly, the synagogue also had a certain judicial authority over violations of religious rites and ordinances.
Later this same synagogue decrees the expulsion of the man who received sight, that is, his excommunication. Compare v. 34 of this chapter with v. 22, and also Jn 12:42.