John 9:5-7

"While I am in the world, I am the light of the world." Having said this, he spit on the ground, made some mud with the saliva, and put it on the man's eyes. "Go," he told him, "wash in the Pool of Siloam" (this word means Sent). So the man went and washed and came home seeing.

I am the light of the world
John 1:4 In him was life, and that life was the light of men.
John 8:12 When Jesus spoke again to the people, he said, "I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life."

he spit on the ground
Mark 7:33 After he took him aside, away from the crowd, Jesus put his fingers into the man's ears. Then he spit and touched the man's tongue.
Mark 8:23 He took the blind man by the hand and led him outside the village. When he had spit on the man's eyes and put his hands on him, Jesus asked, "Do you see anything?"

wash in the Pool of Siloam
John 9:11 He replied, "The man they call Jesus made some mud and put it on my eyes. He told me to go to Siloam and wash. So I went and washed and then I could see."
2 Kings 5:10 Elisha sent a messenger to say to him, "Go, wash yourself seven times in the Jordan, and your flesh will be restored and you will be cleansed."
Nehemiah 3:15 ... he also repaired the wall of the Pool of Siloam, by the King's Garden ...
Isaiah 8:6a "Because this people has rejected the gently flowing waters of Shiloah ..." [that flowed from the Gihon spring to the Pool of Siloam].
Luke 13:4 "Or those eighteen who died when the tower in Siloam fell on them--do you think they were more guilty than all the others living in Jerusalem?"

and came home seeing
Isaiah 35:5 Then will the eyes of the blind be opened and the ears of the deaf unstopped.
John 11:37 But some of them said, "Could not he who opened the eyes of the blind man have kept this man from dying?"

[Brackets are mine]

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984 by International Bible Society. Used by permission. All rights reserved worldwide.