The resurrection of the tribulation martyrs. The rest of the dead did not come to life until the thousand years were ended. A reference to the unsaved men and women whose souls are imprisoned in Hades. These two resurrections are separated by one thousand years. The second death refers to unbeliever who will face eternal punishment in the lake of fire following their resurrection.
Man is born spiritually dead.
There will be no intellectual doubt regarding the deity of Christ and the truth of His Word. But salvation will still require a personal faith and commitment to Christ. To test the faithfulness of people born during the millennium. To demonstrate to man that the problem is not Satan or the environment, but the sinful heart of man. Even under the idealic leadership of Christ, man s heart is still rebellious.