'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)

4939. Once when I had been raised up to heaven it seemed to me as though my head was there, but that my body was below it, and my feet even further below. From this I had a perception of how the higher and lower things present in the human being correspond to the same in the Grand Man, and how one flows into another; that is to say, how the celestial, which is the good of love and the first degree of order, flows into the spiritual, which is truth springing from that good and the second degree of order, and then into the natural, which is the third degree of order. From this it is evident that natural things are like the feet on which the higher things support themselves. What is more, things in the spiritual world and those in heaven are ringed about by the natural world. Consequently the whole natural system is a theatre representative of the Lord's kingdom, every individual part of it being representative, 2758, 3483. The natural system is kept in being by an influx conforming to that order, and without this influx it could not remain in being for even a single moment.