The Thessalonians were worried that those who died before Jesus returned would be left behind. Paul assures them that God has everything under control and whether one is awake or asleep at the time of Jesus’ coming their hope of salvation is secure. I don’t believe Paul is any more informed than I am about the details and even though he shares his version of the timeline his point is verse 18. “Encourage one another with these words.” The words he meant as encouragement are that those who have died will be included in the future final feast. We don’t worry about the same thing as the Thessalonians as we trust that our loved ones are already with the Lord. We even imagine how they are spending their time. Grandpa's gone fishing. Unfortunately these encouraging words have been used to support a less than encouraging theology where a select few are caught up in the clouds (rapture) while the vast majority of people are left behind to endure horrors beyond imagination, although humans are pretty good at imaging and inflicting horrors on each other. I think the true horror is that rapture theology makes the God of grace look like every other god humans have created in their own image. So maybe the encouraging word for us – who no longer worry about where our loved ones are – is that a God who would suffer and die for humanity is not a God who thinks like we do.