From my previous post you may aware that the Old Testament has many inconsistencies. To explain those inconstancies and to resolve them Midarsh was developed. Midarsh was a system developed in Jewish literature to interpret the contradictions and give a precise meaning to the religious text of the Bible. Midrashic writing attains its glory in the 2 century and subsequent interpretations of the Bible were influenced by it. (Note: In the middle of this post I will refer Kabbalah, another mystical Jewish literature also)
According to Midarsh, Lilith was Adam’s first wife and not Eve. Lilith was the very first protester against male chauvinism. Yes she was! During a sexual intercourse Adam wants to prove his authority and forced her to lie beneath, but she refused and rebelled against him and deserted him. (Refer: Sepher Ben Sira, Midrashic collections of proverbs). As Lilith vanished in the air, Adam got irritated and wanted her back, to satisfy Adam God sent his three angels (Senoy, Sansenoy, and Semangelof) and they found her in the Red sea. The angels threaten her if she is not coming back to Adam, one hundred of her sons would die every day but in spite of the threat she was not turn back to Adam. Since then she harm the new born. According Sumer- Babylonian legends Lilith was a winged evil spirit who kills infants and women in child birth. More over Lilith was incarnate extravagance and lust. And she is who have sexual intercourse with men in their dreams thus cause wet dreams.
According to Kabbalah Lilith was a demon who seduce men and kill children. As she was not obeying her husband Adam though she was equal with Adam she was described as evil.
Ref: The Apocryphal Testament of Reuben
Isaiah 34:14( This is the only reference in Bible)
Sepher Ben Sira