briefly, if I may. May you all have peace!
The word "original" as in "original serpent," is a mistransliteration. The true word is "arkaic"... which was misrendered to mean "ancient"... "old" or "original." In truth, it is referring to the "arkaic serpent"... one of two on the Ark of the Covenant.
ALL spirit beings are "serpents". Not serpent, as in "snake" as we know it, but "serpent" as in "seraph/saraph"... which means "fiery serpent". All spirit beings are "saraphs," including my Lord: he is a copper "saraph" (depicted as such, based on his coloring).
"Satan" and Michael were the two "cherubs" that were covering the Ark of the Covenant... positioned on the cover, with their faces toward the cover. The "cover" of the Ark... is my Lord: the Propitiatory. A "cherub" is not a TYPE of spirit being; it is a POSITION in the spirit world. Cherubs... are SARAPHS... who are in an elevated position. Angels... are SARAPHS... who are messengers. An "arkangel"... is a cherub/angel... whose position is directly related to the Ark.
"Saraphs"... have wings and legs (as well as arms). Thus, when first placed in the garden, the "form" which Satan occupied also had wings and legs... which were subsequently removed. A snake, then, with wings and legs... is a "dragon." We also call a snake a "serpent," but that is because of religion's misunderstanding: a serpent also has wings and legs... for it is also a "dragon".
Spirit beings are saraphs... fiery serpents. Those who are bad, who deal in death, are "vipers"... poisonous serpents. Those religious leaders who deliver God's sheep into death's hand, by misleading them, are call the "OFFSPRING" of "vipers".
As for the similarities between ancient Egyptian beliefs and that of the Hebrews... there was little difference. The Egyptians and Hebrews at one time served the same God, JAH... of Armies. That is why Egypt was entrusted with the care of Israel for some 400 years. JAH would not have predestined Israel to end up in Egypt, He would not have sent Joseph ahead, Pharaoh would not have made Joseph his second in command... were these common beliefs not in place. Egypt and Israel... were allied... "brothers".
The division came when Israel grew in population and the Pharaoh of such time was convinced to enslave them. As with all religion, it is when one faction begins to oppress the other that great division in beliefs come into existence. Catholics/ Protestants, Jews/Samaritans, Christians/Muslims... Christendom and, well, Christendom... etc.
Moses was told to go to Pharaoh and say who it was that sent him: JAH... of Armies. Pharaoh, who believed himself to be a god, failed to acknowledge JAH... whom he did in fact know... for Israel had dwelled in Egypt for hundreds of years. Because He knew that Pharaoh would act as if he did NOT know JAH... JAH... caused his (Pharaoh's) heart to become more of what it was... obstinate. He gave to Pharaoh according to Pharaoh's own heart... such that what Pharaoh himself WANTED... came true.
I bid you peace.
A slave of Christ,
SJ