Short answer — most people read this backwards. They insist that the text points to something else, when it is that something else is pointing back to the text.
In your mind, envision an oral body of lore about the Fall of the Devil. It’s not written in Scripture, but we know it exists because of so many references back to it that are fairly consistent. Other passages of Scripture give us glimpses of it. This in itself reflects a broader ANE lore about similar things: people and demigods whose ambitions drove them too high out of personal arrogance. The Hebrews sampled some of this material for obvious reasons.
In Hebrew culture, arrogance is a character flaw. By the same token, taking up the reins of delegated authority and acting with assurance is a virtue. Humility is not a particular set of actions, nor an attitude you put on, but is the constant awareness of whence power descends. In humility, you never hesitate to deny the authority is yours, but affirm that it is a burden upon you. You operate in the name of some higher power.
Back to that body of lore…
When the prophets discuss the fall of great arrogant rulers, they would naturally reference some of the lyrical imagery and verbiage of that oral lore. “In the same way that the Devil fell…” In other words, these arrogant humans (in these passages) were suckers for the temptation offered by the Devil, who wants nothing more than for humans to endorse his error as if it were not an error. To become arrogant is, in effect, to worship the Devil. In your own awareness, you may be worshiping yourself, but it’s a self imbued with the Devil’s spirit.
Thus, by no means should we say those two Bible passages are about the Devil, but that they reflect something of the Devil’s story. The prophets used him as a morality tale. “You are no smarter than the Devil! You are trying to act just like him!”
If you grasp this, then we you recognize the echoes of how Satan got into his current situation, an eternal creature stuck here inside of the time/space continuum. It is for him rather like dying and going to the grave. It is an experience of death. That term might mean literally expiring in some cases, but it’s more important to portray the hideous realization that you really messed up.
