In this passage, we see people questioning and doubting Jesus, but from different postures of heart. The religious people exposed their hardened hearts by their refusal to believe in Jesus, despite what they had seen and heard. But John the Baptist, an ambassador and disciple, brought his doubt to Jesus. As someone who was about to lay down his life for Christ, John was seeking affirmation that Jesus was who he believed Him to be, and Jesus graciously reassured him that he could believe that He was.