How can we be assured of perseverance in salvation?

The assurance of perseverance in salvation is grounded in the doctrine of eternal security, often summarized in the phrase 'once saved, always saved.' As emphasized in Romans 8:38-39, nothing can separate us from the love of God in Christ Jesus. This secures the believer's standing before God forever. Our ability to persevere does not depend on our own strength but on God's faithfulness to keep those He has redeemed. Thus, the certainty of salvation comes from God's unchanging nature and His sovereign will to ensure that all whom He has called will ultimately reach glory.