What does the Bible say about the perverted gospel?

In Galatians 1, Paul writes about the danger of a perverted gospel, which he defines as a message that deviates from the true gospel of Christ. He warns the Galatian churches that even if an angel from heaven preaches a different gospel, they should consider him accursed. This highlights the seriousness with which Paul regards the integrity of the gospel. A perverted gospel, in this context, refers to any teachings that add or subtract from the message of grace through faith in Jesus Christ, rendering them not a gospel at all. The apostle's strong language serves as a reminder that true faith must rest solely on the unaltered truth of God's word.