Demons?

[Angrboda]

The idea of Satan convincing a bunch of angels to turn away from Yahwen makes me curious. What exactly did he say? Any good lie must contain some kernel of truth to be believed. To convince someone that their life can be improved through change, they must be discontent in some way. In what way was heaven lacking enough that a third of the population could be convinced to rock the boat?

I would think that if your going against a omnipotent Being you either have a reason that makes self sacrifice okay with you or your dumb as a box of rocks.

If I remember my theology rightly, angels were fashioned to be servitors of God. Maybe autonomy isn't their strong suit, and it only took one dumbass to lead a flock of them down the primrose path. Kinda like your average Christian today. (In fairness, the whole bit about angels and the Morning Star was a late development in Judaism, during the apocalyptic period. The first real modern variants of the lore emerges in Maccabees and Enoch.)