Salvation in the Assyrian Church of the East is understood as participation in the divine life through the great mystery of the Incarnation and the sacramental life of the Church. The church teaches that God sincerely wills the salvation of all humanity, extending grace universally. However, salvation is appropriated through human cooperation with this offered grace, through faith, repentance, and participation in the mysteries—particularly Baptism and the Holy Eucharist.

Baptism is understood as the sacrament of new birth, in which the faithful receive remission of sins, are united to Christ, and receive the Holy Spirit. The Eucharist, celebrated using the ancient Anaphora of Addai and Mari, is the ongoing participation in the body and blood of Christ and in the divine life. The church emphasizes that salvation is not a forensic imputation but a real transformation of the person through theosis—participation in God's eternal life. Works of righteousness, fasting, prayer, and almsgiving are expressions of cooperation with grace and are expected of the believer.