Thou wast altogether born in sins They alluded, I doubt not, to his blindness; as proud men are wont to teaze those who have any distress or calamity; and, therefore, they continually insult him, as if he had come out of his mother's womb, bearing the mark of his sins For all the scribes were convinced in their hearts, that souls, after having finished one life, entered into new bodies, and there suffered the punishment of their former crimes. Hence they conclude that he who was born blind was, at that very time, covered and polluted by his sins. This undeserved censure ought to instruct us to be exceedingly cautious, not always to estimate the sins of any person by the chastisements of God; for, as we have already seen, God has various ends to accomplish, by inflicting calamities on men. But not only do those hypocrites insult the wretched man; they likewise reject disdainfully his warnings, though they are holy and good; as indeed it very frequently happens that one cannot endure to be taught by him whom he despises. Now, since we ought always to hear God, by whomsoever he may talk to us, let us learn not to despise any man, that God may find us always mild and submissive, even though he employ a person altogether mean and despicable to instruct us. For there is not a more dangerous plague than when pride stops our ears, so that we do not deign to hear those who warn us for our profit; and it frequently happens that God purposely selects vile and worthless persons to instruct and warn us, in order to subdue our pride. And they cast him out. Though it is possible that those haughty Rabbis [1] cast him, with violence, out of the temple, yet I think that the Evangelist has a different meaning, that they excommunicated him; and thus the casting of him out would have the semblance of law. This agrees better also with what follows; for if they had only cast him out in a disdainful and furious manner, it would not have been of so great importance as to make it probable that the report of it would reach Christ.

Footnotes

1 - "Ces Rabbins orgueilleux."

Wast born in sins - That is, thou wast born in a state of blindness a state which proved that either thou or thy parents had sinned, and that this was the punishment for it. See John 9:2. Thou wast cursed by God with blindness for crime, and yet thou dost set up for a religious teacher! When people have no arguments, they attempt to supply their place by revilings. When they are pressed by argument, they reproach their adversaries with crime, and especially with being blind, perverse, heretical, disposed to speculation, and regardless of the authority of God. And especially do they consider it great presumption that one of an inferior age or rank should presume to advance an argument in opposition to prevailing opinions.
They cast him out - Out of the synagogue. They excommunicated him. See the notes at John 9:22.

Thou wast altogether born in sins - Thou hast not only been a vile wretch in some other pre-existent state, but thy parents also have been grossly iniquitous; therefore thou and they are punished by this blindness: Thou wast altogether born in sins - thou art no other than a sinful lump of deformity, and utterly unfit to have any connection with those who worship God.
And they cast him out - They immediately excommunicated him, as the margin properly reads - drove him from their assembly with disdain, and forbade his farther appearing in the worship of God. Thus a simple man, guided by the Spirit of truth, and continuing steady in his testimony, utterly confounded the most eminent Jewish doctors. When they had no longer either reason or argument to oppose to him, as a proof of their discomfiture and a monument of their reproach and shame, they had recourse to the secular arm, and thus silenced by political power a person whom they had neither reason nor religion to withstand. They hare had since many followers in their crimes. A false religion, supported by the state, has, by fire and sword silenced those whose truth in the end annihilated the system of their opponents.

They answered and said unto him, (f) Thou wast altogether born in sins, and dost thou teach us? And they cast him out.
(f) You are wicked even from your cradle, and as we used to say, there is nothing in you but sin.

They answered and said unto him,.... Being nettled, and stung at what he said, and not able to confute his reasoning; and it is amazing that a man that could never read the Scriptures, who had had no education, was not only blind, but a beggar from his youth, should be able to reason in so strong and nervous a manner, and should have that boldness and presence of mind, and freedom of speech before the whole sanhedrim. Certainly it was God that gave him a mouth and wisdom which these learned doctors could not resist, and therefore they reply in the following manner,
thou wast altogether born in sins; meaning not in original sin, as all mankind are, for this might have been retorted on themselves; but having imbibed the Pythagorean notion of a transmigration of souls into other bodies, and of sinning in a pre-existent state, or a notion of infants sinning actually in the womb, and so punished with blindness, lameness, or some deformity or another for it, they reproach this man, calling him vile miscreant, saying, thou vile, sinful creature, who came into the world covered with sin, with the visible marks of having sinned, either in another body, or in the womb before birth, and therefore wast born blind:
and dost thou teach us, holy, wise, and learned men! which breathes out the true pharisaical spirit they were possessed of, and which appeared in their ancestors before them; see Isaiah 65:5.
And they cast him out; not merely out of the place where the sanhedrim sat, or out of the temple; this would have been no great matter, nor have made any great noise in the city, or have been taken notice of by Christ, or moved his compassion towards him; nor merely out of any particular synagogue, or was the excommunication called "Niddui", which was a separation for thirty days, and for the space of four cubits only; but was what they call "Cherem", which was a cutting him off from the whole congregation of Israel; See Gill on John 9:22; an anathematizing him, and a devoting him to ruin and destruction: and now in part was fulfilled, Isaiah 66:5, for this was done in pretence of zeal, for the honour and glory of God; and Christ appeared to the joy and comfort of this man, and to the shame and confusion of those that cast him out, as the following verses show.

They cast him out. If they could not answer his arguments they could excommunicate him. This they did. Observe that this miracle was officially investigated by the enemies of Christ, and they were compelled to admit it. The judicial investigation showed that he was born blind, that he was cured, and that Jesus gave him sight.

Born in sin - And therefore, they supposed, born blind. They cast him out - Of the synagogue; excommunicated him.