'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)

1686. 'Four kings with five' means the union existing with the latter four and the lack of union with the other five. This becomes clear from the meaning of 'four' and from the meaning of 'five'. Consisting of two pairs, 'four' means union, as also does two when it has regard to things that are married, as also noted in 720. 'Five' however means disunity because it is associated with fewness, as shown in 649. All things depend for their particular meanings on the subjects to which they refer.