'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)

116. THE SUN IN HEAVEN

In heaven, neither the sun of the world nor anything from that sun is seen, because it is wholly natural. In fact, nature has its beginning from that sun and whatever is produced by means of it is called natural. But the spiritual, in which is heaven, is above nature and quite distinct from what is natural, nor is there communication between the two except by means of correspondences. What the distinction between them is may be understood from the things said before about degrees (38), and what the communication is from the things said in the preceding two sections about correspondences.