6 When Jesus had said this, He spit on the ground, made some mud, and applied it to the man’s eyes.
John 9:6 Cross References - BSB
Mark 7:33
33 So Jesus took him aside privately, away from the crowd, and put His fingers into the man’s ears. Then He spit and touched the man’s tongue.
Mark 8:23
23 So He took the blind man by the hand and led him out of the village. Then He spit on the man’s eyes and placed His hands on him. “Can you see anything?” He asked.
Revelation 3:18
18 I counsel you to buy from Me gold refined by fire so that you may become rich, white garments so that you may be clothed and your shameful nakedness not exposed, and salve to anoint your eyes so that you may see.