'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)

5. 1. What the spiritual meaning is. The spiritual meaning is not the sense that shines from the literal one when one is studying the Word and interpreting it in order to confirm some dogma of the church. This sense is the Word’s literal sense. Rather its spiritual meaning is one not apparent in the literal one. The spiritual meaning lies within the literal one, like the soul within the body, like thought within the eyes, and affection within the face, which operate in concert, like cause and effect.

That spiritual meaning is what principally causes the Word to be spiritual, not only for people, but also for angels. Consequently that meaning is the means by which the Word communicates with the heavens.