Revelation 20:6

Blessed and holy is he that hath.... — This is one of the benedictions of the Apocalypse. The blessing on those who have part or share in the first resurrection has this definite feature. On these the second death has not power (or authority). The second death stands in contrast with the first resurrection. The second death is not the mere physical dying; it is rather that more awful death which lies outside the region of the things seen and temporal. Whatever it means, and whatever the conditions which surround it, it is spiritual rather than physical. It is not the life of the body which protects the life of the spirit; it is the living and believing in God which protects from the second death; according to Christ’s word of such, “they shall never die” (John 11:26; comp. John 10:27). Blessed, too, are such in being priests and kings (they shall reign). Theirs is the priesthood of life who have offered themselves a living sacrifice to God (Romans 12:1). The kingship of life is theirs, who have overcome the world-powers in the word of God and in the blood of the Lamb; these truly reign. (Comp. Note on Revelation 5:10.)