'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)

In Revelation 10:9, "And I went unto the angel, saying, give me the little book," signifies the faculty of perceiving the quality of the Word from the Lord.

In Psalm 40:7, this signifies the Word. (Apocalypse Explained 299, Coronis 60)

(References: Apocalypse Explained 616)