The leaders claim they 'know' Jesus is a sinner. How does the man's simple testimony contrast with their authoritative pronouncements?
The religious authorities assert their knowledge with an emphatic 'We know that this man is a sinner.' They see themselves as the ultimate interpreters of God's law, particularly regarding the Sabbath. Because they believe Jesus violated it, they've concluded he be a sinner, outside of God's favor. However, the man's response is rooted in his direct, personal experience: 'Whether he be a sinner, I know not: one thing I know, that, whereas I was blind, now I see.' He sets his lived reality against their theological deductions. His knowledge comes from God's direct intervention in his life, not from their pronouncements.