Lilith is the most common known demon in Jewish tradition, she is presented as a thief of newborn children. She represents
the spiritual aspect of darkness. In the Talmud Lilith is not only a demon but also a figure of uncontrolled spirituality.
"It
is forbidden for men to sleep alone in a house, lest Lilith get hold of him"
(Shabbat 151a)
Some
medieval thinkers accept the belief of demons, while others completely reject the idea, even with the various amount of demon
references in the Talmud.
There are also several references to the act of exorcism, including
in the Dead Sea Scrolls. The Midrash mentions the procedure in several stories. The key in a Jewish exorcism is that it has
to be done by a rabbi.