Take Lucifer’s non serviam not just as his own account of his choice but as the paradigm for all sins: Ye are of your father the devil, and the lusts of your father ye will do.. for he is a liar, and the father of lies. The non serviam has to be taken as Satan’s interpretation of the act, involving some sort of lie.*
Start with an account of a slave: Person A is a slave to B when B lays claim to all of A’s labors. If B does so justly, then the servitude is just, if he does so simply by force or violence then the servitude is one of the supreme forms of violent degradation.
The luciferian non serviam first suggests the slavery as a violent degradation. Perhaps the thought goes like this:
1.) Who wills your happiness necessarily more wills it than who wills it contingently.
2.) Always follow the rule of the one who more wills your happiness.
3.) Creature X necessarily wills the happiness of X.
4.) God wills the happiness of creature X contingently on the mysterious counsels of His will.
Submit to God’s mysterious will? NO! we need more assurances! I’ll follow God so far as it is good for me. What, this is a mortal sin? Well then, mortal sin is the only reasonable path to take. Everything else is to degrade yourself by handing your life over to one demonstratively less interested in your flourishing than you are.
But where is the lie in all this?
Obviously, the first lie would be the belief that your labors – or even your own person – weren’t justly God’s right. This explains things, but it seems to miss the point of the argument just given, which questions how acting in accord with this justice could ever be reasonable when we necessarily will our own happiness but God need not.
But that last claim is wrong. We will our own happiness by nature and nature is ian aspect of the divine mind given to things. We will our own happiness only because God willed the same thing first and continues to do so. It’s a mistake to see God’s will as if it is wholly alien to our own desire when our desire itself is simply one way in which things participate in the divine will itself.
More importantly, the luciferian non serviam is properly a denial of grace for the sake of one’s proper nature, but in a supreme irony, to reject grace to to reject the only thing that can elevate one out of the servitude to God. I no longer call you servants but friends. We are right to see something less than perfect in servitude to God, even though this servitude is entirely just and good in itself, but this is precisely what God is seeking to remedy by the gift of grace. The luciferian non serviam is exactly what made him a slave twice over, not just by the natural state of owing all to God but to be enslaved as a punishment against his will.
*If we stick on the purely angelic level we will have to explain the angelic fall apart from speculative error, which will make it too difficult for what I’m trying to do here. So I’ll understand the Luciferian non serviam to some extent from within the human order, namely, to the extent that the argument requires imputing speculative error ro the act.