Mark 7:33
So, Jesus took him away from the crowd by himself and put His fingers into the man's ears. Then He spit and touched the man's tongue [i.e., with His saliva]
Mark 8:23
[So], He took hold of the blind man by his hand and brought him out of the village. When Jesus spit [and put His saliva] on his eyes [See 7:33 for a similar use of His saliva in healing] and placed His hands on him [for healing], He asked him, "Can you see anything?"
Mark 5:40
They laughed at Him scornfully. But after having all the people wait outside He took the child's father and mother, along with those who came with Him [i.e., Peter, James and John] and went in to where the [dead] child lay.
John 9:6-7
After He had said this, He spat on the ground and made mud with the saliva. Then He put the mud on the man's eyes