What does Conditional Immortality affirm and deny?
As a doctrinal position, conditional immortality explicitly affirms that immortality is a gift from God given only to the saved (1 Tim 6:16; Rom 2:7; 2 Tim 1:10; 1 Cor 15:54). Immortality means living forever (literally, deathlessness).
It also implicitly rejects universal immortality, the view that all people are or will be immortal. Since this is a tenet of both eternal torment and universal salvation, conditionalism necessarily denies those two positions. ((Conditionalism therefore also rejects universal salvation’s stipulation of a universally-met condition for immortality.))
Conditionalism is described in terms of “eternal life” for the saved, and “eternal punishment” for the unsaved (Matt 25:46). Punishment here consists of an “eternal judgment” of death instead of life, requiring an “eternal destruction” of “body and soul” (Heb 6:2; 2 Thess 1:9 cf. Matt 10:28).
This aspect of conditionalism can be called annihilation. Whereas the concept of death speaks of a forfeit of life (without specifying whether this will be temporary or permanent), annihilation speaks of a death that is permanent. Since God is the source of life (Acts 17:25; Heb 1:3; Rev 2:7 cf. Gen 3:22), this may be understood in terms of a consequence of eternal separation or severance from God.