What is the primary reason that a good life does not guarantee salvation?

The primary reason that a good life does not guarantee salvation is that salvation is understood as a free gift from God, which cannot be earned through good deeds or a moral lifestyle. Many theological frameworks emphasize that human efforts, no matter how commendable, fall short of the perfection required for salvation. This reflects the belief that grace, rather than human merit, is what reconciles a person with God.

In this context, good deeds and living a moral life are seen as important aspects of faith and obedience but are not the basis for salvation itself. Instead, acceptance of the grace offered through faith in Jesus Christ is what brings salvation. This understanding underscores the belief that faith and reliance on God's mercy are crucial, rather than an accumulation of good actions or personal accomplishments.

The other choices presented suggest different frameworks that imply a direct correlation between good deeds and salvation, which contrasts with the core belief in grace as the foundation of salvation.