I understand the Scriptures to teach that there will be a Rapture of the church:
"For the Lord himself will come down from heaven, with a loud command, with the voice of the archangel and with the trumpet call of God, and the dead in Christ will rise first. After that, we who are still alive and are left will be caught up together with them in the clouds TO MEET THE LORD IN THE AIR. And so we will be with the Lord forever. Therefore encourage one another with these words". (1 Thess. 4:16-18)
The return of Jesus Christ is in TWO phases. The above is the FIRST PHASE when he comes FOR HIS SAINTS. He does not come all the way to the earth. The First coming of the Lord took 33-1/2 years to complete. the second coming may take longer to complete. When Jesus "raptures" the saints to heaven (the dead first, and then those who are alive) it comprises ALL believers. it is the WHOLE church. The TRIBULATION period of 7 years will begin at the Rapture. The last 3-1/2 years of that 7 years is the GREAT TRIBULATION.
During that 7 year Tribulation the JUDGMENT SEAT OF CHRIST will take place in Heaven. We don't know how long that will take. The Judgment Seat of Christ will not be punishment (as Christ died for our sins on the cross and already took all of God's wrath upon Himself). It will be a Judgment of how believers used their bodies on earth for the Lord: were they faithful? Were they unfaithful? Did they produce silver, gold and jewels, or wood hay and stubble? The Bible says that some will receive no reward, but will be "saved as though by fire". The faithful will receive crowns which will be thrown at Jesus' feet. The true sadness for those who don't receive crowns won't be that they have no crown to wear----it will be that they have no crown to throw at the feet of Jesus!
Some say that only the faithful will be raptured, and the rest left to go through the Tribulation to be tried, etc. But this is not true. The WHOLE CHURCH will be raptured-----HOWEVER, only those found FAITHFUL (at the Judgment Seat of Christ) will RETURN WITH JESUS TO EARTH --THE SECOND PHASE). In this Phase Jesus comes WITH HIS SAINTS. The first phase was Jesus coming FOR his saints---the second Phase is Jesus coming WITH his saints. Due to their faithfulness, part of the reward will be to ride white horses and return with Him to the earth. The "unfaithful" will not have this privilege. Again, this is not saying some are lost and some saved----ALL ARE SAVED. But the faithful will have the privilege to return with Christ to earth. There is no need to leave the unfaithful on earth to go through the Tribulation---the unfaithful will be judged at the Judgment seat of Christ---and the "judgment" they receive is LACK OF REWARD----NOT PUNISHMENT or WRATH.
It is important to see that there are TWO PHASES of this return. If you don't see that then you confuse the two and try to make it one return in one phase---that's where the problem lies in a lot of interpretations. Again, Jesus FIRST comes FOR his saints (the Rapture), then returns WITH his saints (Enoch mentions this phase--see Jude for this prophecy of Enoch:
"Enoch, the seventh from Adam, prophesied about them: “See, the Lord is coming WITH thousands upon thousands of his holy ones to judge everyone, and to convict all of them of all the ungodly acts they have committed in their ungodliness, and of all the defiant words ungodly sinners have spoken against him" (Jude 14, 15).
This is the second and final phase of His return where he puts his feet on the Mount of Olives. And he destroys the Anti-Christ. A thousand years will then pass (and Satan will be locked up during that time). At the end of the thousand years Satan is loosed, and then the world is finally judged. Then comes the GREAT WHITE THRONE JUDGMENT when unbelievers are resurrected. They have rejected Grace and so will be shown by their works why they are being throne into the Lake of Fire. This is the very end of time and the beginning of eternity.