'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)

2737. With those who live in conjugial love the interior parts of the mind are open through heaven even to the Lord, for that love flows in from the Lord through that which is inmost in man. From this influx of that love they have the Lord's kingdom within them, and from it they have genuine love towards little children, for the sake of the Lord's kingdom. From that influx also they are receptive of heavenly loves more than anybody else, and with them more than anybody else mutual love is present, for mutual love flows from conjugial love as a stream from its source.