Why is looking to Christ essential for assurance of salvation?

The sermon clearly states that assurance of salvation is found by looking outside of ourselves and toward Christ alone. This is crucial because evaluating our own worthiness can lead to doubt and despair; instead, we are reminded that our salvation is rooted in Christ's perfect accomplishment. When we focus inwardly on our failures, we may feel lost or guilty, but the gospel redirects us to the completed work of Christ, ensuring that our confidence and rest are placed firmly in Him. This is how we reconcile our guilt and find peace, knowing that it is not our actions but Christ that secures our salvation and acceptance with God.