Found this summary interesting.

“According to Paradise Lost, Satan started out as one of the most important angels in Heaven. Turns out, Satan had beef with God. That beef was jealousy at the fact God is the boss of the universe. He started bitching about God and rounding up a bunch of other angels who felt the same way. Satan started a war in Heaven, angels against angels, which he ultimately lost. As punishment for being such an almighty pain in the arse, God consigned him to Hell, hence Satan’s famous ‘fuck you’ quote, ‘better to reign in Hell, than to serve in Heaven.’ ”” (from “Heavenfield: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 3)” by LJ Ross)