What does John 9:27 mean?
The religious leaders of Jerusalem are looking for any excuse to reject Jesus and His miracles. They have already interrogated the subject of Jesus' latest healing (John 9:13), as well as the man's parents (John 9:18). When no damning evidence results, they once again summon the formerly blind man. Using a common interrogation tactic, they ask him the same questions again, suggesting that he is lying (John 9:24) and looking for inconsistency in his answers.Instead of playing along, the beggar thoroughly embarrasses the religious elites. He responds with an answer which is honest yet cuts the Pharisees and scribes deeply. In short, this uneducated man says, "I already told you this—are you asking because you want to believe in Jesus, too?" That, of course, is exactly the opposite of what these men want. They've threatened anyone who accepts Jesus with excommunication (John 9:22). They've proven they're insincere in their rejection of Him (John 9:16). This means the beggar's answer is almost certainly sarcastic.
This casual, confident response sends the religious leaders into a tantrum. Rather than acting as impartial judges, these men will resort to insults (John 9:28, 34). Unfortunately for them, this will only make the situation worse, as the beggar continues to counter their bile with common sense truth.