“Holy Spirit indwelling will no longer”
I’m not so sure of that. The Spirit renews the inner man day by day and if one is a Christian that is the process by which we are renewed. The Holy Spirit ,if he is the Restrainer, can certainly step out of the way, but still be with “TRIB saints” if the scenarios occur that way! Christ says of his children that he will never leave or for-sake them. The Bible talks about “sealing of the Saints” at some point during this challenging period. I don’t think the Holy Spirit abandons any of his children to their own devices, even if his activity is minimized in the greater world at that time. They will not be able to withstand Satan’s temptations otherwise.
I’m reminded of the story of Saul who appeared at Gibeah with the prophets and as they sacrificed, the Holy Spirit fell on them(1Samuel 10) ...yes it did happen in the Old testament. It may very well manifest that directly in the Trib times but since Jesus had already died and arisen...it won’t be a mere “falling upon but indwelling”. These Christians are going to need much more power to withstand the times. I can’t find anywhere supported that the Holy Spirit won’t support Christians who become so during the Trib period, assuming the “pre-trib’ scenario! His support may be more “Old testament” perhaps, but I suspect because of the cross, He will indwell them as well!
On my profile page is a little essay on 'faithing', that is the idea of walking in faith, depending upon the promises of God, placing faith in His Promise to come and call out His Bride to Him, not on the Earth but called out to go to the Father's House. The faithing process is a daily living with the Holy Spirit within teaching, training, guiding, and transforming the believer (the word in the Greek is from 'pitis', conveying faither, but the King James translators didn't like using the same word too much in a paragraph so they used synonyms). When God says regarding the marriage of two to make one, He is not primarily talking about a sex act. The betrothal in the Jewish marriage process made a contract offered by the bridegroom and binding Himself to her and she to him when she accepted or her father accepted in her stead.
Have you often wondered about the double phrasing of calling The Church the Bride of Christ and also The Body of Christ, and referring to we believers as in Him, in Christ? Jesus gave Philip a Physics lesson on this issue in John 14. We as the Church are in Him, we are His bride and His contract is what we faithe in as we are built up into the prepared Bride for His taking us back to the Father's House.
I cannot even begin to explain how The Holy Spirit works upon men, but we know that something changed with Pentecost. And it is reinforced for our 'seeing' with the episode involving the house of Cornelius. God comes into the believer in a way that was in OT times very rare. In the Church Age it is to 'any who will'. This indwelling is a voluntary thing on our part ... we choose to believe and be guided and transformed as His Bride, to be in Him, to be The Body of Christ. This is the hallmark of The Good News, Christ in you.
The presence in the believers restrains the spirit of iniquity. It does this individually, for we see it is not stopping the filth broadcast around the globe and pushed upon society with such degeneracy as the homosexual marriage farce. When He, the restrainer, is taken out this happens as The Body of Christ, His Bride, is removed.
More than one of God's chosen workers has experienced the utter frustration by the enemies of The Faith (those caught in the spirit of iniquity) when God's servant is present. The spirit of iniquity is restrained to the degree that The Holy Spirit is shining out through the worker. So His presence within us works to restrain. In America, we have grown cold-to-luke-warm, not actively opposing the spirit of iniquity, allowing it to build around us, with pornography, drug habituation, sexual degeneracy, lies and deception as a way of living, and bloodthirsty behaviors.