Jesus used his spit to cure a blind man.
Mark 8:23
Putting spittle on his eyes he laid his hands on him and
asked, "Do you see anything?"
Jesus breathed on his apostles to give them the Holy Spirit.
John 20:22
He breathed on them and said to them, "Receive the
holy Spirit."
Jesus gave his apostles his own body and
blood in the form
of
bread and wine.
Mark 14:22-23
While they were eating, he took bread, said the blessing,
broke it, and gave it to them, and said, "Take it; this is
my body." Then he took a cup, gave thanks, and gave
it to them, and they all drank from it.