Resurrection, the first
'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)
Arcana Coelestia #8746
8746. The internal man is regenerated first by the Lord, and the external after that, the external being regenerated by means of the internal. The internal man is regenerated through thinking about matters of faith and intending them, but the external through a life in keeping with them. The life of faith is charity.