In my estimation the final piece of theological truth that should put an end to the idea of a post tribulation rapture is found in those people who will populate the millennial reign on earth. If there is no time between the rapture and the millennium, then these people present a significant problem for post-tribbers.
According to Post-Trib teachers, the rapture and resurrection are one event at the end of the tribulation period that will usher in the millennial reign of Christ on earth. If that were true there is a serious problem to deal with. If that is the case then there is no one left to enter the millennium, because everyone would either be glorified, or destroyed.
The Bible teaches us in 2 Thessalonians 1:7-10 that all remaining unbelievers will be destroyed at His coming. “And to you who are troubled rest with us, when the Lord Jesus shall be revealed from heaven with his mighty angels,
8 In flaming fire taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ:
9 Who shall be punished with everlasting destruction from the presence of the Lord, and from the glory of his power . . .” In other words the unbelievers will not live into the millennium.
Put that down and remember it, we’ll come back to it in a minute. The Unbelievers are destroyed at His coming. All right. Now think about this: if the rapture occurs at the same time, then all of the saved become immediately glorified, and ready to rule and reign with Christ; the problem is that there is now no one to rule and reign.
If all the unsaved are destroyed, and at the very same time all of the saved are raptured/resurrected, who then is left to enter and populate the millennium? We certainly know from the book of Isaiah, as well as Zechariah, that there will be unsaved and unredeemed people to live in the millennium. “The sinner being a hundred years old shall be accursed.” (Isaiah 65:20) Where did he come from? According to the scriptures all the unbelievers are destroyed at the glorious appearing.
Now if all the saved are raptured at the same time that all the lost are destroyed, the millennium people of Isaiah, Zechariah, and Revelation 20 must be figments of someone’s imagination. Of course we know that isn’t true.
Where then does the millennium sinner of Isaiah 65 come from? He is born there. He is born to parents who survived the tribulation period, and live into the thousand year reign of Christ. And the only way that is possible is for them to have been saved “after the rapture.” And the only way that is possible is for the rapture to occur at a time different from, and prior to the glorious appearing. If they were saved prior to the rapture, then they would have been glorified in the rapture and gone to be with Jesus, and beyond raising families on earth. If they were unbelievers at the rapture and the rapture occurred at the end of the tribulation they would have been destroyed.
The fact is that the presence of sinners in the millennial reign demands that some people come to know Jesus as Savior after the rapture, and if the rapture occurs at the glorious appearing, that cannot happen.
The ultimate reality is that Jesus can call His people out at any moment, and to not believe that is one of the most dangerous mindsets one can be in. Post tribulation rapture theology does much damage to the spiritual alertness of Christ’s people. Jesus said that it is a wicked servant that says my Lord delayeth His coming.
Recognizing that Jesus Christ could call our names to come up hither at any moment is a wonderful change that needs to be made in the life of every single believer.