John 9: And Came Back Seeing

In these 7 signs, John has been keen to show us that Jesus is the fulfillment of the ceremonial law, the temple system sacrifices, the meaning of all of Israel’s holy days, and Yahweh’s promises and prophecies. He did not merely claim to be God’s Son, the Messiah; he revealed that he is God’s Son, the Messiah.

Another clear and irrefutable marker is revealed in John 9, namely, that the eyes of the blind shall be opened. (Isa 35:5; Matt 11:4-5; Luke 7:22) This kind of physical miracle had never happened before (John 9:32), yet just like the water, the bread, and the other healings, the physical miracles serve mainly to point to a far greater reality about blindness and sight, and a far greater reality about Jesus Christ.
Because Jesus is the light of the world . . .

He can give eyesight to the blind. (1-7)
He can make the blind to see. (8-41)