'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)

49. They heard conjugial love described by angels in its delights and pleasures, and that it lasts to eternity, with unending variety of delights and pleasures; and they were amazed. Consequently many of them received faith concerning the Lord and were sent among the angels of the Christian heaven. They were instructed about the Lord and in the doctrine of love and faith in Him.