Another reason many contemporary Christians struggle with doubts about their salvation is the fact that so many base the assurance of their salvation upon their Christian experience. For instance, going over their conversion experience with a fine-tooth comb to make sure they properly worded their sinner’s prayer, felt the anticipated emotional euphoria, and experienced immediate, unmitigated, and miraculous transformation, leaves many a Christian with suspicions about their salvation.
In 2 Peter 1:16-21, the Apostle Peter speaks of his personal experience on the Mount of Transfiguration with Christ. He tells of how he beheld the glory of Christ and heard a voice from Heaven declare, “This is my beloved Son, in whom I am well pleased.” Who among us can boast, as Peter does in this passage, of being an eyewitness to such a glorious spiritual experience? Still, Peter goes on in this passage to assert that he had a “more sure” way of confirming his faith in Christ than his personal spiritual experiences.
According to Peter, the best confirmation of our faith in Christ is found in God’s divinely inspired, infallible, and immutable Word. It is not our spiritual experiences, no matter how spectacular they may be, that serves as our best assurance of salvation. Instead, it is the surety and certainty of God’s Word—the Bible.