How do we know the doctrine of the gospel is true?

The truth of the doctrine of the gospel is substantiated through both Scripture and the experiential evidence in the lives of those who believe. The apostle Paul notes that the gospel is the power of God for salvation (Romans 1:16), indicating that its truth is evidenced in its capacity to change lives. Those who genuinely embrace the gospel often testify to profound transformations in their hearts and lives, as the Holy Spirit actively works within them. Furthermore, the consistent witness of the Scriptures throughout history lends credibility to its message, as seen in prophecies about Christ and their fulfillment. The transformative power of the gospel and the coherence of its message through Scripture serve as strong assurances of its truth (Ephesians 1:13-14).