Maybe we should consider what the Bible says and let it give us understanding.
Rev 1:7 Behold, he cometh with clouds; and every eye shall see him, and they [also] which pierced him: and all kindreds of the earth shall wail because of him. Even so, Amen.
Matt 16:27 For the Son of man shall come in the glory of his Father with his angels; and then he shall reward every man according to his works.
Rev 22:12 And, behold, I come quickly; and my reward [is] with me, to give every man according as his work shall be.
At the time that Jesus comes back there will only be two groups of people living on the Earth, the saved and the lost.
The saved will say:
Isa 25:9 And it shall be said in that day, Lo, this [is] our God; we have waited for him, and he will save us: this [is] the LORD; we have waited for him, we will be glad and rejoice in his salvation.
and lost will say:
Rev 6:16 And said to the mountains and rocks, Fall on us, and hide us from the face of him that sitteth on the throne, and from the wrath of the Lamb: 17 For the great day of his wrath is come; and who shall be able to stand?
The reward of the two group differ drastically according to their works.
Revelation 20: 4 - 6
Rev 20:4 And I saw thrones, and they sat upon them, and judgment was given unto them: and [I saw] the souls of them that were beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received [his] mark upon their foreheads, or in their hands; and
they lived and reigned with Christ a thousand years. 5 But
the rest of the dead lived not again until the thousand years were finished. This [is] . 6
Blessed the first resurrectionand holy [is] he that hath part in the first resurrection: on such the second death hath no power, but they shall be priests of God and of Christ, and shall reign with him a thousand years.
The redeemed spend the thousand years with Jesus but those who were not resurrected did not live until the thousand years were finished. The living wicked will join them, the who are left are left dead. The state of the Earth during the thousand years is also described in the Bible:
Jer 25:33 And the slain of the LORD shall be at that day from [one] end of the earth even unto the [other] end of the earth: they shall not be lamented, neither gathered, nor buried; they shall be dung upon the ground.
No one to bury the wicked
Isa 24:19 - 22 The earth is utterly broken down, the earth is clean dissolved, the earth is moved exceedingly. 20 The earth shall reel to and fro like a drunkard, and shall be removed like a cottage; and the transgression thereof shall be heavy upon it; and it shall fall, and not rise again. 21 And it shall come to pass in that day, [that] the LORD shall punish the host of the high ones [that are] on high, and the kings of the earth upon the earth. 22 And they
shall be gathered together, [as] prisoners are gathered in the pit, and shall be shut up in the prison, and after many days shall they be visited.
Here is what Jeremiah saw concerning the thousand years:
Jer 4:23 - 27 I beheld the earth, and, lo, [it was] without form, and void; and the heavens, and they [had] no light. 24 I beheld the mountains, and, lo, they trembled, and all the hills moved lightly. 25 I beheld, and, lo, [there was] no man, and all the birds of the heavens were fled.26 I beheld, and, lo, the fruitful place [was] a wilderness, and all the cities thereof were broken down at the presence of the LORD, [and] by his fierce anger. 27 For thus hath the LORD said, The whole land shall be desolate;
yet will I not make a full end.
Rev 21:1 And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea.
