: The doctrine of salvation, which explores how humanity is redeemed through faith and God's grace [26].
Most theological systems, particularly in the Christian tradition, are divided into several key "sub-doctrines" [10]: theological doctrine
: The study of the church, including its purpose, rituals (like Baptism and Communion), and leadership structures [31]. : The doctrine of salvation, which explores how
: Defines what a specific religious community believes and how they differ from others [11]. : The doctrine of salvation