'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.

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

3634. The person with whom correspondence exists, that is to say, with whom love to the Lord and charity towards the neighbour, and consequently faith, exist, is as to his spirit in heaven and as to his body in the world. And since accordingly he acts as one with the angels he is also an image of heaven; and since the influx of all or of the general whole takes place, as has been stated, into every individual person or part, he is also a miniature heaven under human form. For it is good and truth that enable a person to be human, and that mark him off from animals.