Scripture does not teach that Jesus's resurrection is the first resurrection of the millennium.Scripture explicitly teaches that Jesus's resurrection is the first resurrection.
Acts 26:23 That Christ should suffer, and that he should be the first that should rise from the dead, and should shew light unto the people, and to the Gentiles.
1 Corinthians 15:20 But now is Christ risen from the dead, and become the firstfruits of them that slept.
So, using scripture to interpret scripture we should understand that having part in the first resurrection involves having part in Christ's resurrection.
Jesus was resurrected thousands of years before the millennium begins.
The first resurrection of the millennium is of the martyred great tribulation saints - who testified of Jesus and refused to worship the beast, his image, nor took his mark.
After the millennium has ended and Satan's last deception of the nations, is the second resurrection, that of the rest of the dead.
There will three resurrections of Christians....
1. The rapture/resurrection event of all Christians up to that point, before the great tribulation begins.
2. The resurrection of the great tribulation martyred Christians at the beginning of the millennium.
3. The resurrection of the rest of the dead, including Christians who did not take part in either (1) or (2). Which would include Christians who died during the great tribulation period, but were not martyrs. And persons who become Christians during the millennium and die during the millennium.
The Great White Throne Judgment, for which the second resurrection relative to the millennium takes place, will include those saved Christians (3) and the unsaved of all times.
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What you are trying to do @Spiritual Israelite is to redefine what is the first resurrection of the millennium.
The term "millennium" is not even found in the bible. It is a term created to refer to the 1000 year period in Revelation 20.
Amil denies that 1000 year period as literal' and thus Amil moves the destruction of this present world in Revelation 20:11 to be on the day of Jesus's Second Coming. Which Amil also denies Jesus's Second Coming is to stand again on this present earth as it says in Zechariah 14:2-5.