Biblical Assurance of Salvation

According to Scripture, assurance of salvation is always based on Christ's work, not ours. Objectively, Christians look to Christ's past work on the cross; subjectively, Christians look to Christ's present work in our lives; and supremely, Christians look to Christ's unshakable promises regarding our future. Our assurance of salvation is not found in a prayer we prayed or a decision we made however many years ago as much as it is found in the sacrifice of Christ for us, experiencing the Spirit of Christ in us, obeying the commands of Christ to us, and expressing the love of Christ to others.

--David Platt, Follow Me: A Call to Die. A Call to Live. (Carol Stream, IL: Tyndale House, 2013), 189-190.