'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)

83. 'The heavens and the earth and all the host of them' are said to be 'finished' when man has become 'the sixth day', for at that point faith and love make one. And when they do make one, love, which is the celestial, starts to be primary instead of faith, which is the spiritual; that is, he starts to be a celestial man.