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 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.