'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)

882. 'And he proceeded to send out the dove from the ark' means a state of receiving the goods and truths of faith. This is clear from what has been stated at verse 8 where nearly identical words appear, with the difference that there it is said 'he sent out the dove from himself', for the reason also given there, that at that time he himself was the source of every work of truth or good which he performed. That is to say, he believed that he performed it by his own power, meant by 'from himself'.