Why can't true believers fall away from salvation?
Answered in 1 source
True believers cannot fall away because their salvation is secured by God's grace, as seen in Romans 8:30 where it says those called are justified and glorified.
The assurance of perseverance in faith is a key doctrine within Reformed theology, rooted in the understanding that salvation is a work initiated and completed by God. Romans 8:30 tells us that those whom God predestines are also called, justified, and glorified, indicating a complete and unbreakable chain of divine action. Additionally, in Philippians 1:6, Paul assures that He who began a good work in believers will carry it on to completion. This understanding provides profound peace and confidence to believers, affirming that their standing in Christ is secure and that they will ultimately persevere in faith until glory.
Commentary