John 9:6-7

The miracle: V. 6. When He had thus spoken, He spat on the ground, and made clay of the spittle, and He anointed the eyes of the blind man with the clay, V. 7. and said unto him, Go, wash in the pool of Siloam (which is by interpretation, Sent). He went his way therefore and washed, and came seeing.

Now Jesus proceeded deliberately to perform the miracle of healing the blind man, who had undoubtedly heard every word of the conversation, with the sweetness of its Gospel-message. He formed a paste by moistening a little clay with spittle from His mouth, placed it upon the eyes of the blind man, and then sent him down to the pool Siloam to wash.

The pool Siloah, or Siloam, was the one from which the water was taken on the day of the great Hosannah, the last day of the Feast of Tabernacles, whose pouring out symbolized the sending of the Spirit. Jesus in this case arranged the circumstantial details at such unusual length in order to emphasize that the healing was performed by Him.

The blind man, whose faith in Jesus had meanwhile been firmly grounded, did not hesitate for a moment to carry out the orders of Christ. He went away and washed himself and returned seeing.