3. The sea gave up the dead which were in it. “ And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their works"--20:13.
The symbolism continued, the reference was not to the literal sea nor to physical death. Although the principles may be applied generally, the language belongs visionally to this apocalypse, and has direct reference to the judgment of the persecuting rulers and their subjects. The use of the word sea applied to the heathen society, consistent with the employment of the symbol elsewhere in the apocalypse; as mentioned in the classification of symbols in the first chapter. There was no reference to the bodily resurrection of the dead at the general judgment. This surrender by the sea of its dead was as figurative as the first resurrection of verse six. The realm of death and hell (hades) in like figure were also said to deliver up the dead which were in them.
The words death and hades were used as a synecdoche--a figure of speech by which a part is put for the whole; the genus for the species, the name of the substance for the thing. So death and hades were used here for the subjects of the diabolical and infernal powers.
In the same symbolism that the first resurrection of verse six was described as a resurrection to a state of victory--the resurrection of a cause; the “ rest of the dead” were envisioned in a resurrection of retribution--of judgment on the evil rulers and their wicked subjects who had persecuted the cause of the Lamb of God.