The Christian doctrine of salvation (known theologically as soteriology ) is the belief that humanity is rescued from sin and its consequences—death and separation from God—through the life, death, and resurrection of Jesus Christ . It is considered the core pillar of the Christian faith. Why It Is Needed According to the Bible, the first humans (Adam and Eve) disobeyed God, bringing sin into the world. This concept is known as original sin . Because God is perfect and holy, He cannot tolerate sin. Consequently, all humans are born with a broken nature and are spiritually separated from God, facing an eternal penalty. How It Was Achieved Christians believe that humanity could not fix this problem on its own. Instead, God sent His Son, Jesus Christ, who lived a perfect, sinless life. Jesus willingly died on a cross to take the punishment for humanity's sins. Christians refer to this sacrificial act as the Atonement . Three days later...