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.
(Izinkomba: Apocalypse Explained 6; Apocalypse Revealed 851; Revelation 20:5-6)
Gathered to his people
In Genesis 25:8, this signifies that all people in the same truth meet and are together in the next world.