'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)

166. People believe that when our sins are forgiven they are washed away or rinsed off the way dirt is rinsed off with water. However, our sins are not washed away; they are just put aside. That is, we are held back from doing them when we are kept focused by the Lord on doing what is good; and when we are focused on doing good it seems as though our sins are gone and therefore as though they have been washed away. Further, the more we have been reformed, the more capable we are of focusing on doing what is good; how we are reformed will be explained in the treatment of regeneration that follows [§§173-186]. If we think that our sins are forgiven in any other way, we are sadly mistaken.