Actually Satan wasn't envious in the book of Job. They even covered it kinda on South Park. Job is one of the most fucked up books of the Bible, maybe second to Deuteronomy, at least if you believe Satan is God's evil counterpart. In Job, God and the Satan are on speaking terms, almost budies or comrades. They make a bet and God says, "Go ahead and make that guy's life utterly miserable. I bet you he'll remain faithful." And the fucked up thing is God loses. Job actually loses faith at one point and God just straight up gets pissed and chews him out, essentially calling him a know-nothing piss ant who should keep his trap shut because God is all powerful and Job is just a scrub. Job is proof that Satan is a class of angel, not one in particular, unless you're willing to accept God and Satan are buddy-buddies like Saddam Hussein and Satan in South Park.