ISB ~ Revelation 20 v5

the first resurrection:The meaning of the two resurrections is uncertain. The first may refer to a spiritual resurrection to new life through faith and Baptism (Jn 5:25; Rom 6:3-4), followed by a bodily resurrection at the return of Christ (Jn 5:28-29; 1 Thess 4:15-16). Or perhaps both resurrections are bodily, the first being that of Christ and the saints of the OT (Mt 27:52-53) and the second involving the rest of humanity Rev (20:12-13; 1 Cor 15:22).