Satan (origin)
A visual overview of the origin of "Satan", from the 1st dynasty god Set, evil brother of Horus, to the "Set-Baal" supreme god synretism god merger in the 15th dynasty, when Egypt was taken over by the Hyksos, to the "Set-Amen" supreme god synretism in the 17th dynasty, going into the New Kingdom dynasty, after the Hyksos were kicked out of Egypt, to the eventual "Satan" or "Satan-Devil", syncretized with the Greek recension concept of demon, that arose in the Roman recension, the fallen angel, and archenemy of Jesus.
In religio-mythology, Satan, aka Devil, is the Judeo-Greek-Roman monotheistic rescript of the Egyptian god “Set”, the once supreme deity (see: supreme god timeline) of the from the 15th dynasty (1650-1550), as Baal-Set, per workings of the Hyksos recension, to the 17th dynasty (1580-1549), as “Set-Amen”, to the 19th dynasty (1292-1189), as “Horus-Set”, who by the time of the Roman recension had become demonized as a “fallen angel”, in the form of the devil. [1]

The following are related quotes:

God, Satan, paradise, and hell all vanished one day in my fifteenth year, when I abruptly lost my faith. Afterwards, to prove my new-found atheism, I bought myself a rather tasteless ham sandwich, and so partook for the first time of the forbidden flesh of swine. No thunderbolt arrived to strike me down. From that day to this I have thought of myself as a wholly secular person.”
— Salmon Rushdie (1991), “In God We Trust” [2]

1. Thims, Libb. (2016). Smart Atheism: For Kids (pdf | 309-pgs). Publisher.
2. (a) Rushdie, Salmon. (1991). “In God We Trust”, in: Imaginary Homelands (pgs. 376-432). Granta.
(b) Hecht, Jennifer M. (2003). Doubt: A History: The Great Doubters and Their Legacy of Innovation from Socrates and Jesus to Thomas (pgs. 474-75). HarperOne.

External links
‚óŹ Satan – Wikipedia.

TDics icon ns