'The first resurrection,' mentioned in Revelation 20:5, 6, does not mean a first resurrection, but the essence and primary part of resurrection, which is salvation and eternal life. There is only one resurrection to life. A second does not happen, and is not mentioned anywhere in the Bible.

(References: Apocalypse Explained 6; Apocalypse Revealed 851; Revelation 20:5-6)

80. He is permitted by every perception that is from the Lord to become aware of what good and truth are, but not to do so from himself or from the world, that is, to probe into mysteries that are part of faith by means of sensory evidence and factual knowledge which cause the celestial in him to die, verses 16-17.