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Read John ch 3 carefully.
He’s not offering a ‘rapture,’ he will be changing us wherever we are, and that change places us in the realm of Yehova, which encompasses the space-time creation.
Paul said in the twinkling of an eye.
It is your path that is perilous. The eternal covenant is not to be rejected; it is the source of our righteousness; our “garment.”
The lawless will be turned away, just as the parable says.
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I live under the new covenant established by Christ on the night He was betrayed. And I don’t know what the definition of rapture is other than Paul stating we will meet Christ in the air when He calls. Gnosticism, secret knowledge and other heresies are as old as Christianity itself. It appears you have found your way into them. Christ and Christ alone through His atoning sacrifice is the only way to Salvation. Trying to tie your salvation to anything else means you are lost.
Read John 14 very carefully. If you dare ... then read 1 Thess 4