… we will also bear the likeness of the man from heaven. (1 Cor 15:49)
1 Cor 15:49 Just as we have borne the likeness of the man who was made from dust, we will also bear the likeness of the man from heaven.
1 The 4:13 But we do not want you to be ignorant, brothers, about those who have died, so that you may not grieve like other people who have no hope.
15 For this we declare to you by the word of the Lord, that we who are alive and remain until the coming of the Lord will by no means precede those who have died.
16 With a shout of command, with the archangel’s call, and with the sound of God’s trumpet, the Lord himself will come down from heaven, and the dead in Christ will rise first.
17 Then we who are alive and remain will be caught up in the clouds together with them to meet the Lord in the air. And so we will be with the Lord forever.
Jesus Christ answered the question of resurrection this way Luk 20:35: but those who are considered worthy of a place in that age and in the resurrection from the dead neither marry nor are given in marriage. Mat 22:30 says about the same: For in the resurrection they neither marry nor are given in marriage, but they are as the angels of God in Heaven.
From these words of Jesus it can be concluded that the resurrected ones are in the spirit body, since they are like angels and angels are spirits in heaven. These resurrected mentioned by Jesus are not those who live on earthly paradise, as described by Isaiah. (Isa 65:17>). There are also children in this earthly paradise and their parents are not angels but flesh and blood.
Isaiah also tells what kind of circumstances prevail in the millennial reign of peace:
11:6 And the wolf shall live with the lamb; and the leopard shall lie with the kid; and the calf and the young lion and the fatling together; and a little boy shall lead them.
7 The cow and the bear shall feed, their young shall lie together; and the lion shall eat straw like the ox.
8 And the infant shall play on the hole of the asp; yea, the weaned child shall put his hand on the viper’s den.
9 They shall not do evil, nor destroy in all my holy mountain. For the earth shall be full of the knowledge of Jehovah, as the waters cover the sea.
Probably Jesus means that those who are resurrected the ones involved in the first resurrection; they will be caught up in the air to meet Jesus and they are happy because the second death no longer has power on them. These Holy saints will act as ‘priests and kings’ in the kingdom of God now to begin. Among these are the disciples to whom Jesus spoke by saying, “Do not be afraid, little flock, for your Father has chosen gladly to give you the kingdom” (Luke 12:32). – The kingdom is on earth, not in heaven, at least for the first thousand years. It would therefore be probable that the leaders of the kingdom would also be on earth and not in spirit bodies in heaven. See, however, Phl 3:14 I keep pursuing the goal to win the prize of God’s heavenly call in Christ Jesus. KJV 1789: I press toward the mark for the Prize of the high calling of God in Christ Jesus. 2 Timothy 4:8 confirms the same: For the rest, the crown of righteousness is laid up for me, which the Lord, the righteous Judge, will give to me in that Day, and not only to me, but also to all the ones loving his appearance.