God is looking for people who want to get down to His business and be servants to a world that needs to see the love of God. That's what we have been "Left Behind" to do. There are a lot who want to go live on a mountain top and get 'taken away.' The church is not put here to survive and wait for escape, but to conquer, with the love of Christ. Did he change the mission sometime after the first century. This dispensationalism that follow (pre-trib rapture, 2 covenants) was not even a theological idea until about 1850. A member of a sect called the Bretheren in England had a vision where he saw the church taken out. There are a lot of scritural problems I have with that. But back to the subject at hand, Hal Lindsey, to me, preaches that the Blessed Hope of the Church is escaping, when the Blessed Hope of the Church is Jesus, crucified and Risen. If there is a pre-trib Rapture, then great, all those who trust Jesus will be in it.
Hal Lindesy and all the other angry prophets want to call down fire from heaven on all the evil going on the world. That's what it deserves, but that's what I deserved before I accepted His offer of Life.
As far as those 'left behind,' I think Hal Lindsey says that the Holy Spirit will be taken out of the world during the great tribulation, and that the only way to be saved will be to die. So is God going to do a new way of salvation during those years. The only way that I know of to be saved is to respond to the conviction of the Holy Spirit and accept God's way, Jesus. Now if someone is preaching that there will be a new way, then let him, as the apostle Paul said, be accursed, for there is only one Gospel.
I have been commanded by Jesus to overcome evil with good. Did he command me to do something that could and would not be done?