I did a major study on Isaiah 14 before. I now have new insights that have forced me to reject the idea of it being relevant to the Death and Resurrection of the Antichrist. Much of my insights there are still helpful, and I don't feel like repeating my adjustments to the Translation. That post however also predates my changing my view on Daniel 11:36-45.
Isaiah 13:1-14:27 is all one Prophecy, remember that as you study this yourself. I still feel this thematically connects Revelation 12 to Revelation 18.
As I was thinking about that again recently, it hit me how I really should have realized after talking about a possible allusion to the Abyss there that I had just discovered an Old Testament reference to Satan being bound in the Abyss.
Verse 19 was the main smoking gun to my reading Revelation 13 into it, "thrust through with a sword" but as I read it more carefully now, it's not Satan or the King of Babylon being described that way, just talking in general about people who have died violently because of this individual's evil deeds.
I also realized that when talking about the King of Babylon being sent to Sheol it never says this individual died at any point. Another note I should mention is the word translated "dead" in verse 9 isn't a usual Hebrew word for dead but Raphaim.
The standard view among the faithful is that it starts out talking about the King of Babylon then the subject switches to Satan. I said in the prior post I felt verse 12's grammar justified that, but I now realize that was my bias talking.
Another view is that this is all just about a human King of Babylon and that the seeming references to someone falling from Heaven shouldn't be taken at face value. One video on Youtube insists the term "Sides of the North" being used in Psalm 48 about Zion proves that term is about a Terrestrial location, Jerusalem. However Psalm 48 could be the Heavenly Zion of Hebrews 12:22 and Revelation 14, the heavenly location that will become New Jerusalem at the Wedding Feast and then descend after the New Heaven and New Earth are created. The "Sides of The North" is where I believe the Heavenly Temple/Tabernacle is. Interestingly Pagan Canaanite texts also use this same terminology of Heaven.
And the view of Bible skeptics is that Isaiah is just poetically comparing a human King of Babylon to a mythical god. I have addressed that elsewhere.
I have considered a new option. There is no Human King of Babylon in this chapter, this King of Babylon is never described as an Adam or an Enosh, he's never defined as human. Just as Ezekiel 48 refers to Satan as the King of Tyre after talking about Tyre so here Satan is called the King of Babylon. Because Jesus called him the Ruler of The World (Archon of the Kosmos) in John's Gospel, and Paul called him the "God of this Aion". He offered Jesus all the Kingdoms of The World and will give them to The Beast in Revelation 13.
The beast is in conflict with Babylon in Revelation 17, but I think that plays into Satan's manipulations. And it could be God's destruction of the City in chapter 18 is after The Beast conquers it and destroys it's system represented by the Harlot in chapter 17.
(Note, this does not change my view that the Prince of Tyre in Ezekiel 48 is a human ruler, but I'm less certain that has anything to do with The Antichrist).
It could be the Abyss is being idiomatically spoken of as his grave in verse 19.
In verse 20, the "thy" before both "land" and "people" isn't in the Hebrew. Even if their presence is grammatically justified somehow (I'm by no means a Hebrew expert), this could be going back to whatever Satan's intended role was before he started working against God's will in Genesis 3, that he's destroyed lands and people he was meant to be responsible for.
It could be the narrative jumps forward a thousand years when Satan is cast into the Pit and then cast out.
In that past Isaiah 14 study I talked about The Assyrian at the end. This now gives me a new answer to that mystery.
Chris White has a video where he seeks to refute the view of The Antichrist being an Assyrian. I basically agree on that but have differences, for one in the past I'd criticized that video for ignoring Isaiah 14. But I completely agree on Isaiah 9-11, though I do think that could have an End Times second fulfillment, if so that Assyrian would be more likely a decoy Antichrist.
The key to it's relevance here is Micah 5 starting in verse 4. I agree with him that the context of that Prophecy is Millennial, (I had even before this recent insight). But I'm not so convinced of the argument that the hypothetical language means it's not something that will happen. White himself uses hypothetical statements to build eschatological doctrine elsewhere, with John 5 which his False Christ book is dependent on (I think that refers to Barabbas).
Now I'm thinking again of my argument that there may be more time between Satan being let out of the Abyss and the Gog and Magog invasion then people realize (I agree with Christ White that Ezekiel 38-39 is post Millennial). What if Micah 5's Assyrian invasion of Israel is something that happens very soon after Satan is freed from the Abyss? Satan's first act in the events leading up to the Gog and Magog War? A detail Revelation 20 skips or glosses over?
In which case Micah 5 and Isaiah 14's Assyrian Prophecies could be the same event, an event soon after the thousand years expire. And whether there is an individual being called "The Assyrian" or just about the nation and people of Asshur would be irrelevant. This could also tie in with my thoughts on Isaiah 17 and Damascus.