'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.

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

In John 6:63, this signifies the spiritual and celestial sense of the Word and its celestial sense. (Doctrine Regarding Sacred Scripture 39)

(Verweise: John 6)