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 #4178
4178. 'And six years for your flock' means the purpose of which was that He might acquire good after that. This is clear from the meaning of 'six' as conflict and labour, dealt with in 720, 737, 900, in this case that which remained after conflict and labour, and so that which came after; and from the meaning of 'flock' as good, dealt with in 343, 2566, 3518.