How do we know that believers are secure in their faith?

The security of believers is emphasized in Scripture, particularly in Colossians 3:3, which states, "Your life is hid with Christ in God." This hiddenness signifies that believers' spiritual lives are preserved in the presence of God, far beyond any earthly threats. Such a position provides perfect security; nothing can separate them from the love of Christ (Romans 8:39). This hidden life means it exists in a realm of divine protection—thus, no external force can ultimately impede the believer's relationship with God or their eternal standing.