What scriptures support the idea that believers cannot lose their salvation?

Scripture provides a robust foundation for the doctrine of eternal security. Romans 8:28-30 explains the unbreakable chain from foreknowledge to glorification for those whom God has called. John 10:28-29 assures us that no one can snatch believers out of Christ's hand, illustrating the protective nature of His salvation. Furthermore, 2 Thessalonians 2:13 indicates that God has chosen believers for salvation from the beginning, affirming that their status as His elect is eternally secure. Together, these verses emphasize that salvation is a work of God that He sustains, not a temporary state dependent on human effort.