'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.

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

60. In the next chapter of Revelation, chapter 13, the subject is the dragon’s two beasts, the one that was seen rising up out of the sea and the one that was seen rising up out of the earth. Verses 1-10 are about the first and verses 11-18 about the second. We can see from verses 2, 4, and 11 that these are the dragon’s beasts. The first beast means faith divorced from caring with respect to the confirmations it draws from the earthly self, and the second means faith divorced from caring with respect to the confirmations it draws from the Word, which are in fact distortions of the truth. I will forgo an explanation of all this, though, since these verses reflect the lines of reasoning [of those devoted to faith divorced from caring], and require a great deal of verbiage to expound. [I will limit myself to] the last one: “Let those who understand calculate the number of the beast. It is the number of a human being; its number is six hundred and sixty-six” (Revelation 13:18). “Let those who understand calculate the number of the beast” means that those who are enlightened should examine the nature of the confirmations of that faith that have been drawn from the Word. “It is the number of a human being” means that those confirmations are of the same nature as the self-centered understandings [of those who hold that faith]; and “its number is six hundred and sixty-six” means that it is a distortion of everything true in the Word.