That is, the rulers of the Jews did not, or the multitude or rabble of the Jews did not; for we before heard that many of the common Jews did: they had seen him for a long time sit begging; (begging being allowed in that their corrupt and miserable state, they being tributary to the Romans; though in their settled, prosperous state, there was such a liberal provision made for their poor, that there was no beggar in Israel); besides, they had it from his own mouth, 1 Thessalonians 9:9: but the rulers had no mind to believe it; and many others of the Jews (possibly) had been no eyewitnesses of his begging, but had only heard the relation from others: the rulers therefore send for the parents of the blind man.
Related Commentaries of John 9:18
John 9:18
18 But the Jews did not believe concerning him, that he had been blind, and received his sight, until they called the parents of him that had received his sight.