Ah. Well... :) I agree that Revelation 20:6 (actually vv.4-6) describes the first resurrection, but for those of us who have been saved, we have
experienced this first resurrection -- new birth in the Spirit, which Paul describes in Ephesians 2:
"But God, being rich in mercy, because of the great love with which He loved us, even when we were dead in our trespasses, made us alive together with Christ ~ by grace you have been saved ~ and raised us up..." ~ resurrected us ~ "...with Him and seated us with Him in the heavenly places in Christ Jesus..."
...even though we are (of course) not physically dead yet... have not experienced the first death. We are in the midst of the time period described in Revelation 20:4-6 right now.
They are all the same... God's Israel, part of the remnant God has saved for Himself. As Paul says in Romans 11, "Lest you be wise in your own sight, I do not want you to be unaware of this mystery, brothers: a partial hardening has come upon Israel, until the fullness of the Gentiles has come in. And in this way all Israel will be saved."
Yeah, nobody "leaves earth," ever, except for those who are sent away by Jesus at the conclusion of the final Judgment, which occurs upon/very shortly after His return and the
second resurrection (Matthew 7:21-23, Matthew 25:31-46, John 5:28-29, Revelation 20:7-15). This is all one really big event, happening in very short order.
Well, at the end of the
current age. Christ is reigning right now from heaven, along with those who are in Christ who have passed, who are, in the words of Revelation 20, coming to life and reigning with Christ over the course of this age. And this will continue until His return, at which time Israel will be complete, which will close out the present age, "these last days," as the writer of Hebrews puts it in Hebrews 1:2, in which God has spoken to us by his Son. The Millennium of Revelation 20 is not a literal 1000-year period and not future only but going on
right now (since Pentecost and lasting until Jesus's return. It is symbolic of the fullness of God's time in bringing Israel to completion, which, again, is what Paul is saying in Romans 11, cited above and again here, that "a partial hardening has come upon Israel, until the fullness of the Gentiles has come in... (a)nd in this way all Israel will be saved." Christ's millennial reign from heaven and the tribulation (the time of Jacob's trouble (Jeremiah 30, Matthew 24:6-8, 1 Thessalonians 5:3, are
concurrent events, and we are
in the midst of both, now. God never promises to remove us from trial/tribulation/trouble, but to walk with us in the midst of it, as Psalm 23 says so eloquently and magnificently (through David; emphasis added):
"The LORD is my shepherd; I shall not want. He makes me lie down in green pastures. He leads me beside still waters. He restores my soul. He leads me in paths of righteousness for his name’s sake. Even though I walk through the valley of the shadow of death, I will fear no evil, for You are with me; Your rod and your staff, they comfort me. You prepare a table before me in the presence of my enemies; You anoint my head with oil; my cup overflows. Surely goodness and mercy shall follow me all the days of my life, and I shall dwell in the house of the LORD forever."
You're more than welcome to your opinion. Mine, regarding you is right along the lines of what Paul says in 2 Timothy 4:3-4, where he writes,
"For the time is coming when people will not endure sound teaching, but having itching ears they will accumulate for themselves teachers to suit their own passions, and will turn away from listening to the truth and wander off into myths."
Grace and peace to you.