I must stand corrected in my original stance, thank you for pointing out that verse in Isaiah Starfield.
This is a large concept to for us to wrap our mind around.
I've contemplated this before as you have fallen_angel and then dismissed it since the Lords ways are higher than our own.
All I could come to the conclusion of was God could have previously had a decent relationship with Lucifer at one point in heaven regarding his opinion.
I base this upon the fact of God asking satan his opinion of Job, (why would God even need to ask his opinion if that form of dialogue hadn't been present before?)
I wonder if in some aspects part of satans purpose was to assist in providing God with a system of checks and balances.
And at some point an argument ensued between the two and satan wouldn't relent, therefore thinking his own opinion higher than Gods in his own mind. Which would be pride.
Also arguing with God being rebellion.
And if this were the case then of course a form of jealousy
Then after being kicked out of heaven, spite etc etc snowballing.
In short, the power God afforded to Lucifer went to his head.
Anyway much of this is speculation, which we must be careful of so as not to be misled or mislead our own selves.
We are told not to rely on our own understanding.
This could also create the opportunity for sin.
It's also possible satan was relying on his own understanding not seeing Gods long term plan and thus also sinned because of it. Sometimes we do this when we don't trust God and seek out our own will and plans.
I do understand that there are agents of his wrath, yet these can be heavenly angels who carry this out as well.
(Angel of the Lord meeting with Balaam being one example)
But since I for one have just been enlightened that God does in fact create evil, i have some more to ponder upon, since this must be according to achieve his will and purpose in a way that doesnt divide his own kingdom.
But so that his glory can be shown.
Perhaps you were trying to point out that it is our unrightousness which reveals Gods righteousness Fallen_angel, and I would totally agree.
Romans 3
5But if our unrighteousness brings out God’s righteousness more clearly, what shall we say?
Then it must be true that as darkness is the absence of light, evil must be the absence of God, so that we may know the difference and appreciate God's presence with his love and mercy all the more.