According to the Gospel of John, 9:1–12, Jesus saw a man who had been blind since birth. His disciples asked him, "Rabbi, who sinned, this man or his parents, that he was born blind?" Jesus replied:
Neither this man nor his parents sinned," said Jesus, "but this happened so that the works of God might be displayed in him. As long as it is day, we must do the works of him who sent me. Night is coming, when no one can work. While I am in the world, I am the light of the world.
Having said this, he spat on the ground, made some mud with the saliva, and put it on the man's eyes. Like the Lord God who formed Adam from the dust of the earth, Jesus makes clay and creates a new man. "Go," he told him, "wash in the Pool of Siloam". So the man went and washed, and came home seeing. The architectural setting of the miracle is symbolic, which the above aside establishes with a verbal thread. Just as Jesus was sent by the Father to give light/enlightenment, the One Sent sends the man to a pool that means “Sent” to receive sight/insight, and to bring light to a dark world. His neighbors and those who had formerly seen him begging asked, "Isn't this the same man who used to sit and beg?" Some claimed that he was. Others said, "No, he only looks like him." Both conclusions are correct. He is the same and not the same; he is the man who used to sit and beg, yet he is a new person. But he himself insisted, "I am the man,” or simply, “I am”. His self-affirmation mimics Jesus' egō eimi. Although he does not take on the identity of the divine, he finds his identity in an encounter with the divine. "How then were your eyes opened?" they asked. He replied, "The man they call Jesus made some mud and put it on my eyes. He told me to go toSiloam and wash. So I went and washed, and then I could see." "Where is this man?" they asked him. "I don't know," he said. In this miracle, Jesus applies the title Light of the World to himself in, saying: This episode leads into where Jesus metaphorically explains that he came to this world, so that the blind may see.