'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)

7171. It should be recognized that the sun in this world is not at all visible to any spirit, nor is any light from it visible; for the light of the sun is to spirits like thick darkness. It remains only in spirits' minds, as a result of their having seen it when they were in the world; and the picture of it which presents itself in their minds is a kind of dark patch, a considerable distance away behind them, at a height slightly above head-level. The planets within the solar system appear in fixed positions in relation to the sun - Mercury behind it, slightly to the right; the planet Venus on the left, slightly to the rear; the planet Mars on the left, out in front; the planet Jupiter similarly out in front on the left, but further away; the planet Saturn directly in front, but a considerable distance away; the Moon on the left, quite high up; and other satellites too are on the left of their own planets. This is the way that the planets are aligned in spirits and angels' ideas about them. Also spirits are seen close to their own planet; but they remain outside it.