Day 8 in the first creation. Normal activity is returning. The Sabbath rest was over. The original being went back to business as usual maintaining creation including the beings He had made. However, Lucifer had begun to despise the ONE original being Creator G-D. He mocked G-D taunting him baiting him trying to get G-D into this and that contest so Lucifer could demonstrate to all the rest of creation that he was god. He hoped to prove that G-D was a bumbling fool who messed up the chore of creation. and he could do a much better job at it.
Fact is Lucifer despised who he was and the exalted position he held in the first creation for reasons we are not told with any clarity. It seems Lucifer thought he could be CREATOR GOD. That in itself does not really define what the problem was with Lucifer or what was going on in the first creation and the one who made it.
As an exercise that might help us understand what could make Lucifer scorn CREATOR G-D and th most exulted position he was given in the first creation consider how one highly skilled might view someone with meager skills. For instance, one just learning how to color might not stay in the lines of the picture. An other more skilled might easily stay within the lines of the same picture as they are coloring. Even more intricate and detailed pictures are no problem for another. No lines at all are necessary for another. Beautiful canvasses of magnificent color begin to flow from the hand of another. By way of illustration, Lucifer may have felt something like had beautiful canvasses of magnificent color locked inside his chimes while G-D continued to scribble out creation.
Lucifer despised his position as the angel that covers so much that he decided he was not going to do it anymore. Lucifer quit his j o b in the ORIGINAL BEING. Lucifer tricked others among the first creation into the same thing. This discontent grew very rapidly. Lucifer proclaimed himself to be god like G-D. Better than G-D. He proclaimed he could do a better job at creating than the ONE.
THIS IS THE ORIGINAL IDENTITY THEFT: LUCIFER CONSIDERING HIMSELF TO BE EQUAL TO CREATOR G-D BUT EVEN BETTER AT CREATION THAN THE ORIGINAL ONE, THE CREATOR BEING THAT MANIFEST HIM, AND ACTING ON THAT BELIEF.