'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)

9756. 'The hangings shall be fifty cubits' means the quantity of truths needed for the purposes they have to serve. This is clear from the meaning of 'the hangings of the court' as truths such as they are in the lowest heaven, dealt with above in 9743; and from the meaning of 'fifty' as all belonging to one side, and also a sufficient amount. 'Fifty' is similar in meaning to 'five' (for what 'five' means, see 9604, 9689), and therefore also means the quantity needed for the purposes they have to serve, since this is a sufficient amount.