When the thousand years is over, Jesus will return for his second coming. All the dead bodies of the people in their graves will rise at this time and this is shortly before Jesus and his righteous saints in heaven return to earth.
John 5:28 Do not be amazed at this, because the hour is coming in which all who are in their graves will hear · his voice
and will come out—those who have done good, to a resurrection unto life, and those who have practiced evil, to a resurrection unto condemnation.
Revelation 20:4-5 And I saw thrones, and seated on them were those who had been given the authority to judge. I also saw the souls of those who had been beheaded for the testimony of Jesus and for the word of God. These had not worshiped the beast or its image and had not received its mark on their foreheads or their hands. They came to life and reigned with Christ for a thousand years.
(The rest of the dead did not come to life until the thousand years were finished). This is the first resurrection.
The rest of the dead do not rise until Jesus' second coming.
1 Thessalonians 4:15-17 According to the Lord’s word, we tell you that we who are still alive, who are left until the coming of the Lord, will certainly not precede those who have fallen asleep. 16 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. 17 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.
We disagree. That is fine with me.