How do we know that believers are preserved in Christ?

The preservation of believers is a central theme in the New Testament. As seen in John 17:12, Jesus declares, 'none of them is lost,' affirming that His divine protection is assured to the elect. The faithful are sustained not by their efforts but by God's grace and power. This is a comforting truth, as it underscores that even amidst struggles and sin, believers are secure in Christ. Their faith, though tested, will not fail because Christ actively intercedes for them. This belief is further confirmed in passages like 1 Peter 1:5, which states that believers are 'kept by the power of God through faith.'