One cannot bring Revelation to the epistles, but the epistles must be brought to Revelation. There is no future for an Israelite kingdom on earth.
I find it's one's approach to Revelation 20 - 22 that is a main hindrance to accepting Covenant Theology. When we're taught from a very young age that the Prophecy is a linear history, and that the Jews will be restored to preeminence, the Temple cultus restored and that the gentile nations will bring their wealth and glory into Jerusalem in the Middle East, then it does seem somewhat an arbitrary over-spiritualization...until one can see the parallel assertions in the Gospels and the epistles.
Briefly:
First is
the binding of Satan, which had to be accomplished for the Gosple to go forth, to 'spoil his house' as it were.
Matthew 12:29, Luke 10:17
The First Resurrection:
Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved And hath raised us up together, and made us sit together in heavenly places in Christ Jesus: - Ephesians 2:5-6 KJV
This is the church in earth and in Heaven
The thrones, and those who sit upon them to whom judgement is given
1 Timothy 3:15, The church is the pillar and ground of the truth
and the souls of those who died for the testimony of Christ, living and reigning with Christ a thousand years.
Surrounded by a great cloud of witnesses Hebrews 12:1
But the remaining dead live not again until the thousand years (the Gospel age) are ended. They will be raised to face the final judgementwhich is the Second Death.
At the end of the thousand years the
Devil is loosed to deceive the nations once again, and there is coordinated global effort to eradicate Christianity once and for all. Then the end comes and the f
inal judgment, the Second Death.
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Revelation 21 is, to me, an 8th layer of the prophecy not a continuance of the narrative of chapter 20. The New Heaven and New Earth are Christ's New Creation
Therefore, if anyone is in Christ, the new creation has come: The old has gone, the new is here! - 2 Corinthians 5:17 NIV
The New Jerusalem, which is the church...
Galatians 4:21-31, Hebrews 12:22-23
...comes down from Heaven. Christ's Kingdom is not of this world, though it is in the world. John 15:19 .
The tabernacle of God is with men...
And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth. - John 1:14
The rest of the book is a further manifestation of the Sons of God, the Bride, the Holy City, the church, with an invitation to all who thirst to come and drink of the water of life freely.
It's not hard to see that Revelation is not a linear history, but series of parallel sections describing the church in the world, it's suffering and ultimate victory, from various vantage points.