Jesus Heals the Blind Man

What was in the “clay” (John 9:6) that Jesus put on the blind man's eyes?
Jesus' “saliva” and the dirt from “the ground” (John 9:6).

Why would He put dirt on the blind man's eyes?
If his eyes were missing any parts (e.g., cornea, optic nerve, etc.), the missing part could be made from the dirt.

Why would God use dirt to make a part of the human body?
It's the original material: “And the LORD God formed man from the dust of the ground and breathed into his nostrils the breath of life; and man became a living being” (Genesis 2:7).

Did Jesus need to use dirt to heal the blind man?
No, He could have used just His saliva: And He came to Bethsaida; and they brought a blind man to Him, and begged Him to touch him. He took the hand of the blind man and led him out of the town. Having spit on his eyes and having put His hands on him, He asked him if he saw anything. And he looked up and said, “I see men like trees, walking around.” Then He again put His hands on his eyes and made him look up. And he was restored and saw everyone clearly (Mark 8:22-25).

What else could Jesus have used to heal the blind man?
His touch: And when Jesus departed from there, two blind men followed Him, crying out and saying, “Have mercy on us, Son of David!” And when He had come into the house, the blind men came to Him. And Jesus said to them, “Do you believe that I am able to do this?” They said to Him, “Yes, Lord.” Then He touched their eyes, saying, “According to your faith be it unto you.” And their eyes were opened... (Matthew 9:27-30).

What else could Jesus have used to heal him?
His words: Then they came to Jericho. And as He was leaving Jericho with His disciples and a large crowd, blind Bartimaeus, the son of Timaeus, was sitting beside the road begging. And having heard that it was Jesus of Nazareth, he began to cry out and say, “Jesus, Son of David, have mercy on me!” Then many were rebuking him, that he should be quiet; but he kept crying out all the more, “Son of David, have mercy on me!” Then Jesus stopped and commanded him to be called. Then they called the blind man, saying to him, “Be of good cheer. Get up! He is calling you.” So he threw off his outer garment, stood up and came to Jesus. Then Jesus answered and said to him, “What do you want Me to do for you?” And the blind man said to Him, “Rabboni, that I may receive my sight.” Then Jesus said to him, “Go your way; your faith has made you well.” And immediately he received his sight and followed Jesus on the road (Mark 10:46-52).

Why did the blind man call Jesus “Rabboni” above?
To express different levels of respect toward learned men, Jews had four versions of the same root word by which to address such men. At the low end was “Rab,” which means “Master.” Greater respect was expressed by calling them “Rabbi,” which means “My Master,” greater still by “Rabban,” which means “Our Master,” and the highest respect was expressed by calling them “Rabboni,” which means “My Great Master.”