"While the day of the Lord certainly has a chronological reality to it, the day of the Lord is first and foremost a state of being, a state of illumination, understanding, knowledge, consciousness, and experience. The day of the Lord is the garden of Eden, it’s the sabbath of God, it’s the cessation of the flesh, and the strivings, desires, and anxieties of the carnal mind. It’s the ceasing of trying by soulish strength to think up and work up the nature, will, ways, and purposes of God, and it’s entering instead into the power of His life, light, and glory. It’s the discovering and unveiling of the Christ within! That’s what John discovered in Revelation 20:1-6. He discovered the Most Holy Place. There is a people on the earth today that is beginning to experience the reality and fulfillment of all that the prophets prophesied of through the ages. The third day, the third feast of Israel, and the third realm in God are all pre-figured by the Most Holy Place in the tabernacle of Moses with its dimensions of ten cubits wide, ten cubits long, and ten cubits high — one thousand cubits square! Those dimensions correspond precisely with the “thousand years” of John’s vision, for one thousand is a figure composed of 10 X 10 X 10. Beyond the veil, in the Most Holy Place, the one thousand cubits point to the one thousand years of the reign of God’s elect upon the thrones of judgment. Both measurements are symbolisms representing the reign of Christ and all the holy sons of God in the power of the kingdom of God and the brightness of the day of the Lord!"
Much more in the link:
https://www.godfire.net/eby/rev218.html
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"I admonish all who read these lines — be established in YOUR DAY. It is a new day, the day of the Lord! It is not the day of antichrist, nor the great tribulation, nor is it the literal millennium. It is the ever-present day of the unveiling of the glory of Christ and this day comes as a thief. Christ’s presence is beginning to fill the whole earth in a new expression and the glory of the Lord is risen upon a people. This is not a fallacy, this is the sovereign work of God in the lives of those who have been called to this Day. This is the very truth, the very understanding as the Spirit has made it known unto His called and chosen people, that we might know the counsel of God for this very Day. Though multitudes continue to walk in darkness, the darkness of the world of the carnal mind and of the fleshly religious systems of man, you shall walk in the Light and the Light shall dispel the darkness! Many stubbornly cling to those things which are passing, to the former orders and moves of God that have ended, the relics of a former day of glory, the ruins of an order that God has now shaken, but those whose hearts have responded to the call to sonship and the kingdom are taking hold of those things that are new. The former heavens are being rolled up like a scroll and set aside. There is a new order being raised up, a new heaven and a new earth for you today, saints of God!"