The first is "what happens after death?"
The wicked and unsaved?
78 “Now a word about death: When the final sentence goes forth from the Most High that a person should die, when the spirit recedes from the body so that it may be sent again to him who gave it, the first thing is to stand in awe before the glory of the Most High. 79 If the spirit belonged to one of those who showed contempt and didn’t keep the Most High’s way, if it was one of those who despised his Law and who hates those who fear God, 80 these spirits don’t go into their dwellings but will immediately wander about in torments. They will constantly grieve and be sorrowful for seven reasons:[a]
82 The second reason—because they can’t now effectively change their hearts and lives so that they might live.
83 The third reason—because they will see the reward laid up for those who have believed the Most High’s testimonies.
84 The fourth reason—because they will consider the torment laid up for themselves in the last days.
85 The fifth reason—because they will see the dwelling places of others, guarded by angels in great silence.
86 The sixth reason—because they see the torment coming upon them from now on.[b]
87 The seventh reason, which is greater than all the previously mentioned reasons—because they will melt away in confusion and be consumed in disgrace.[c]
“They will wither in fear when they see the glory of the Most High, before whom they sinned when they were alive and before whom they are to be judged in the last times."
What about the righteous?
88 “The arrangement for those who kept God’s ways is this when they begin to be separated from the corruptible body.[d] 89 In the time of their exile here they labored hard to serve the Most High. Every hour they endured danger so that they might keep the Law of the lawgiver perfectly. 90 Therefore, this is the word about them: 91 First, they will see with great joy the glory of him who receives them. They will have rest on account of seven orders:
93 The second order—because they see the panic in which the souls of the wicked wander and the punishment that awaits them.
94 The third order—seeing the testimony that their maker has testified on their behalf, because when they were alive, they kept the Law that was given through faith.
95 The fourth order—understanding the peaceful rest that they now enjoy, gathered in their resting chambers, guarded by angels in deep silence, and understanding the glory that awaits them in their last days.
96 The fifth order—rejoicing at how they have now escaped the corruptible and how they will have a future inheritance; moreover, seeing the narrow space, full of labor, from which they have been freed, and the spacious place they are about to receive and enjoy, now that they are immortal.
97 The sixth order—when they are shown how their face begins to shine like the sun and how they begin to be like the stars, as beings of incorruptible light.
98 The seventh order, which is greater than all those mentioned—because they will rejoice with confidence and will trust without being disappointed and will rejoice without fear; for they hasten to see the face of him whom they served when they were alive and from whom they are about to receive a reward now that they are glorified.
The dead are given 7 days?
Kind of like that movie "Ghost" with Patrick Swayze.
The righteous get to watch the dread of the damned.
The damned get to see the habitations of the saved.
100 I answered: “Will time, therefore, be given to souls after they are separated from the bodies to see what you told me?”
101 He said to me: “They will be free for seven days so that they may see in those seven days the things[e] that have been foretold. After this, they will be gathered in their dwelling places.”
Furthermore,
102 I answered: “If you look on me with favor, show your servant further whether on the Judgment Day the just will be able to seek mercy for the wicked or intercede for them with the Most High. 103 Will parents be allowed to intercede[f] for children, children for parents, siblings for each other, relatives for those close to them, faithful ones for those most dear to them?”
104 He replied to me: “Because I do indeed favor you, I will also show you this. The Judgment Day is decisive.[g] It reveals the seal of truth to all. Even in the here and now a parent doesn’t send a child, or a child the parent, or a master his servant, or a faithful friend a dear confidant, so that the one should understand or sleep or eat or be taken care of in the other person’s place. 105 Just so, no one will ever intercede for another; everyone will then bear his or her own deeds of justice or injustice.”
What happens on the Day of the Lord, or beginning with the Rapture?
Daniel 12:2 tells us.
"And many of those who sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt."
After sleeping, "guarded by angels in great silence," the righteous head up to Heaven from what is more commonly referred to as "Abraham's Bosom." In the story of the Rich Man and Lazarus (Luke 16:19-31), Abraham's Bosom is said to be geographically located directly across from Hell, inside the depths of the Earth.
The damned?
The damned awake to Hell.
"Well, what about 2 Corinthians 5:8?"
Makes a bit more sense now.
"Can you tell us a bit more about the millennial?"
Sure.
It should be understood in light of Revelation 20 and 21.
Christ returns, and the lake of fire is also revealed.
400 years into the millennial, something also happens.
Christ, along with the rest of the world, will die.
7 days later, the earth gives back those who sleep, and the corrupt world dies.
There is then judgment for these.
26 “Look! The time is coming when the signs appear that I told you about in advance, and the city will appear, appearing as a bride, and the land that is now hidden will be openly displayed. 27 Everyone who is rescued from the evils foretold will see my wonders. 28 My Son the anointed one[a] will be revealed along with those who are with him, and those who remain will rejoice for four hundred years.
29 “After these years, my Son the anointed one and all who have human breath will die. 30 The world will be turned back to primeval silence for seven days, as in the earliest beginnings so that no one is left alive. 31 After seven days, the world that isn’t yet awake will be roused, and the corrupt world will die. 32 The earth will give back those who sleep, and the dust will give back in silence those who dwell in it, and the resting places will give back the souls that have been entrusted to them. 33 The Most High will be revealed on the throne of judgment, and mercy will pass away. Patience will be withdrawn, 34 and only judgment will remain. Truth will arise, faith will recover strength, 35 and works will have their consequences. Reward will come about, righteous deeds will awake, and unrighteous deeds won’t sleep."
Questions?
Answers.