so·te·ri·ol·o·gy /soˌtɪriˈɑləʤi/
so·te·ri·ol·o·gy n.
1. A discourse on health, or the science of promoting and preserving health.
2. Theol. The doctrine of salvation by Jesus Christ.
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soteriology
n : the branch of Christian theology that deals with salvation
as the effect of a divine agency