Nâchâsh: The hiss of the serpent

We go back to the beginning in Genesis and see that there was another earth age before man was created. Satan was caretaker of the beast of the field, fowls of the air. He was envied amongst some of the angels for his beauty and wisdom. Then the overthrow happened and God demoted Satan and gave his job to Adam. Hence the hatred began towards Satan and mankind. We go into the original languages and see that the serpent seed was more than an allegory, but literal.

1st Book of Enock 22:7
7. And he answered me saying: 'This is the spirit which went forth from Abel, whom his brother Cain slew, and he makes his suit against him till his seed is destroyed from the face of the earth, and his seed is annihilated from amongst the seed of men.'