'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)

116. Verse 13 And the name of the second river is the Gihon, that which encompasses the whole land of Cush.

'The second river', which is called the Gihon, means the cognizance of all things that have to do with what is good and what is true, that is, with love and faith. 'The land of Cush' means the mind, or [mental] power. The mind consists of will and understanding. All that is said about the first river has reference to the will, and all that is said about this [second river] has reference to the understanding, to which the cognitions of good and of truth belong.