In order to try and answer that, those that have part in the first resurrection, do those include believers? Obviously, yes. But do those that have part in the first resurrection, also include unbelievers? I'm not meaning unblievers who become believers. Obviously, no, no unbeliever is among those who have part in the first resurrection. You would think the same logic applies when we apply it to the rest of the dead, that none of them are believers either if believers are meaning those that have part in the first resurrection.
Here's some of what the text says about those who have part in the first resurrection. They live and reign with Christ a thousand years. They are blessed. The 2nd death has no power over them, but they shall be priests to God and Christ.
Does the text say any of those things about the rest of the dead, that some of them are blessed, that some of them the 2nd death has no power over them, that some of them they shall be priests of God and Christ? No. So what should that be telling us about the rest of the dead? That they are going to be cast into the LOF otherwise they would have had part in the first resurrection, and would have been blessed, the 2nd death would not have had power over them.
Speaking of the 2nd death, how could that possibly be relevant until the LOF is literally in view first? There is no LOF in view in the here and now. But the LOF is in view in Revelation 19, though. But is Revelation 19 meaning chronologically before that of Revevelation 20? Some of us tend to think so, some tend to not think so.
John says only that they who have part in the first resurrection have no fear of the second death. He does not say the second death is imminent, only that they have no fear of it when it does come.
And according to Rev 19 none will face the second death that is the LOF until the rider on the white horse, who is KING OF KINGS, AND LORD OF LORDS, and His great army have accomplished His mission by His sharp sword that proceeds out of His mouth, that is the Word of God; the Gospel. That will be accomplished before the final trumpet sounds that time will be no longer.
Revelation 19:19-20 (KJV) And I saw the beast, and
the kings of the earth, and their armies, gathered together to make war against him that sat on the horse, and against his army. And the beast was taken, and with him the false prophet that wrought miracles before him, with which he deceived them that had received the mark of the beast, and them that worshipped his image. These both were cast alive into a lake of fire burning with brimstone.
This time that shall be no longer precedes Satan being loosed. Since the Gospel before the little season, has accomplished the purpose for which it is sent unto all the world, that is to build the Kingdom of heaven through the power of His Word and Spirit. Believers left alive on the earth during this little season will be surrounded by the minions of evil, under the power of Satan, called Gog; antichrist, and Magog; antichristian groups. But they are without success, (just as the armies of the beast of Rev 19 is also without success), because believers are caught up to meet the Lord in the air, (1Th 4:17) and fire comes down from God out of heaven and devours every living thing upon the face of the earth.
Revelation 20:7-10 (KJV) And
when the thousand years are expired,
Satan shall be loosed out of his prison, And shall go out to deceive the nations which are in the four quarters of the earth, Gog and Magog, to gather them together to battle: the number of whom is as the sand of the sea. And
they went up on the breadth of the earth,
and compassed the camp of the saints about, and the beloved city: and
fire came down from God out of heaven, and devoured them. And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever.
The similarities in Rev 19 & 20 leave little doubt they are both referring to the same battle that will come upon the earth after the Gospel has been sent out to all the world, and the Kingdom of heaven complete. This battle, referred to in Rev 16 as Armageddon. This battle has been fought since the dawn of the universal church on earth, and will culminate with this last great battle of Armageddon so called. Because while the battles of good verses evil have been fought since Christ's first advent, and even beyond, we witness this in the beginning of creation, the final battle is never fought because Christ comes the second time and destroys all evil, and death. Then the holy city, new Jerusalem, (which is being built as the Gospel is sent unto the earth) will come down to the new earth after the first heaven and earth have past away.
Revelation 16:14-16 (KJV) For
they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty. Behold, I come as a thief. Blessed
is he that watcheth, and keepeth his garments, lest he walk naked, and they see his shame. And
he gathered them together into a place called in the Hebrew tongue Armageddon.