How do we know that God's elect will not fall away?

The assurance that the elect will not ultimately fall away comes from the consistent teachings of Scripture that affirm God's sovereignty in salvation. The apostle Paul reaffirms this in Romans 8:38-39 where he assures us that nothing can separate us from the love of God in Christ Jesus. This speaks to the undeniable security that believers have in their relationship with God. Furthermore, salvation is a work initiated and maintained by God's grace alone, as declared in Ephesians 2:8-9, which states that it is by grace we have been saved through faith, and this not from ourselves; it is the gift of God. This divine initiative leads to a refusal of any idea that the saved can lose their salvation, as their preservation is rooted in God's faithfulness, not human effort.