39 And Jesus said, “For judgment I have come into this world, that those who do not see may see, and that those who see may be made blind.”
40 Then some of the Pharisees who were with Him heard these words, and said to Him, “Are we blind also?”
41 Jesus said to them, “If you were blind, you would have no sin; but now you say, ‘We see.’ Therefore your sin remains.
Judgment (v. 39) — not condemnation. For God did not send His Son into the world to condemn the world, but that the world through Him might be saved (John 3:17). This verse is talking about discrimination — He revealed the truth that showed the true state of things. His object was salvation but the effect was judgment.
Those who see (v. 39) — Those, like the Pharisees, who claimed to have the light but didn't. Now we know that whatever the law says, it says to those who are under the law, that every mouth may be stopped, and all the world may become guilty before God (Romans 3:19).
When the true Light came, the Pharisees, who claimed to have the light were shown to be blind. They sinned because they claimed to see but rejected Christ. If I had not come and spoken to them, they would have no sin, but now they have no excuse for their sin. He who hates Me hates My Father also. If I had not done among them the works which no one else did, they would have no sin; but now they have seen and also hated both Me and My Father (John 15:22-24).
The blind man gained physical and spiritual sight. He knew he was blind and so saw the light.
The Pharisees thgouth they saw the light (the Messiah) and this caused them to reject Christ and remain blind.