What GOD's will is will also be determined by your concept of what GOD is.
The will of the Biblical God is not the same as the will of GOD the Source of all that is. Even in the Bible the description of God in the Old Testament (A vengeful, wrathful, tyrant that had little respect or love for man who was a mass murderer) and the Description of GOD that Yeshua/Jesus spoke of (GOD that is within us but also we are within him, the All Loving Father) are very different and clearly not the same concept.
Humans got their Concept of God falsely from the Anuunaki who were worshiped as Gods, meaning not the supreme being, the may have been advanced beings and lessor Gods & Godesses, etc... But even they acknowledged a "Prime Creator" of all that is or source.
So the will of a God or a Biblical God is not the same as the will of GOD the Prime Creator and source of all that is which is also All That Is, and lives through us, experiencing as us.
So before you debate Lucifarianism Vs. The Will of God. You need to define what God you are speaking of as there are many Gods and also the GOD which is the source of all that is and see no good or evil, because it is part of All That Is. Much like in a Video Game all that exists in the game is part of the game.
From my point of view GOD's will is infinite expansion, infinite experience, Infinite Evolution so there is no need or a Vs. argument. All is GOD.
And Regarding Lucifer, Enki, The Serpent, Prometheus, all he was doing was to trying to wake up humanity to their divinity and the GOD within them. Which was opposed to the God(s) that wanted to control them.