Jesus heard that they had thrown him out, and when he found him, he said, “Do you believe in the Son of Man?”
³⁶ “Who is he, sir?” the man asked. “Tell me so that I may believe in him.”
³⁷ Jesus said, “You have now seen him; in fact, he is the one speaking with you.”
³⁸ Then the man said, “Lord, I believe,” and he worshiped him.
³⁹ Jesus said, “For judgment I have come into this world, so that the blind will see and those who see will become blind.”

(John 9:35-39 -- NIV)