>> “Obviously he gave this position up with his defection.” <<
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Not so!
There is nothing in the scriptures that makes such a statement.
He still has full access to the throne of Yehova, and will until the midpoint in Daniel’s 70th week, at which point he will be cast out of the throne room, and will indwell the “Man of Sin,” beginning Satan’s 3.5 year Tribulation of the Saints.
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I rather doubt it. We can't definitively confirm or deny this so the point is moot. However logically Satan has been unmasked with the crucifixion of Christ and any sympathy for his cause has been lost by the rest of creation. Any standing for an audience should have been revoked by this act but that is merely my opinion.