In John 9:15, the Pharisees echo the neighbors' question, asking how he received sight — same inquiry, different interrogators.

In John 9:21, the parents deflect the question, saying they don't know how he now sees — a parallel refusal to answer.

In John 9:26, the Pharisees repeat the question, pressing for details on how Jesus opened his eyes — a direct parallel interrogation.

In John 9:27, the healed man responds to the repeated question with frustration — a direct narrative continuation of the same interrogation.