Isaiah 26:19 is a reference to the final Judgment; after the Millennium. Proved by Revelation 20:11-15
Note: in Isaiah 26:2, the Prophecy that a righteous nation will enter and live in the holy Land.
This will happen after the Lord's fiery wrath has passed.
Sounds like some Tarrantino level storytelling, just chopping things up willy nilly to fit a square peg into a round hole.
Isaiah 26 presents a song, and it tells of the things happening at the end of the age, first, Judah will be reclaimed, and the Jews, come back into the promised land, professing that during their exile that they had been under the dominion of many lords, but in coming back to the land, they will profess only the LORD their God (Isaiah 26:13). That they had been scattered but increased in number (Isaiah 26:14), but then it describes travail (tribulation), they're in distress:
16 Lord, in trouble have they visited thee, they poured out a prayer when thy chastening was upon them.
17 Like as a woman with child, that draweth near the time of her delivery, is in pain, and crieth out in her pangs; so have we been in thy sight, O Lord.
18 We have been with child, we have been in pain, we have as it were brought forth wind; we have not wrought any deliverance in the earth; neither have the inhabitants of the world fallen.
They are persecuted by Gentiles again, and the song calls out to the Lord to deliver them.
Then, there is the resurrection, Isaiah presents it as happening to himself.
19 Thy dead men shall live, together with my dead body shall they arise. Awake and sing, ye that dwell in dust: for thy dew is as the dew of herbs, and the earth shall cast out the dead.
then things happen after the resurrection. God's wrath happens after the resurrection
20 Come, my people, enter thou into thy chambers, and shut thy doors about thee: hide thyself as it were for a little moment, until the indignation be overpast.
21 For, behold, the Lord cometh out of his place to punish the inhabitants of the earth for their iniquity: the earth also shall disclose her blood, and shall no more cover her slain.
So what you have in this chapter, this song, tells of the Jews returning to Israel, after having been scattered over the entire world, they are then set upon and persecuted by gentiles, they call on the Lord to deliver them, and while it is not revealed in this old Testament passage, it is Jesus who comes down and delivers them, along with the resurrection, followed by the wrath of God/Indignation, to take vengeance on those who caused tribulation for both Israel (the woman in Revelation 12), and her seed, those who keep the commandments of God and the testimony of Jesus Christ (Christians)
I didn't have to chop it up and conjure up flash forwards and things out of order, I just let the text go in order, and I can find this same order of events, of Tribulation -> Return of Jesus/Resurrection/Rapture -> Wrath of God in the bible repeatedly. Unless the bible itself gives me a distinct place where it breaks Chronology, like Revelation 10:7 indicating that the 7th trumpet is the final event and it's done, and Revelation 12 going back to the birth of Jesus making a clear reset.
I get the same order, every time, without jumping around and inducing "flash forwards" to explain things that don't fit for you.