Wasn't it that Satan did 4 things?
- A bit of arrogant rant that he is not gonna serve humans. Got thrown to hell. By all loving father. Yeah.
- Still pissed, nudged Eve to break the God rule about apple. God had a meltdown and not only banished but also cursed Adam and Eve.
- Teased Jesus to break his goal. Didn't work.
- Teased God on few occassions about devotion of humans. Then God made people suffer to prove his point.
Like, Lucifer always seemed to me more like disgruntled old family friend/worker than some evil guy.