How do we know the gospel is divinely authoritative?

The authority of the gospel is grounded in its divine origin, being a message from God intended for human salvation. Believers recognize its infallibility through the testimony of Scripture and the transformative power it has in the lives of those who accept it. In 1 Corinthians 1:21, Paul mentions that God chose the foolishness of preaching to save those who believe, reinforcing the idea that divine authority backs the gospel message. This divine authority should lead us to approach the gospel with reverence and belief amid skepticism and doubt.