The Bible warns against altering the true gospel, which centers on the grace of Jesus Christ, indicating that any other message is not the gospel at all.
In Galatians 1:6-8, the Apostle Paul expresses astonishment that the churches in Galatia have turned away from the grace of Christ to embrace a different gospel. He emphasizes that there is no 'other' gospel because the true gospel is rooted solely in the person and work of Jesus Christ. Altering this message—whether by adding works or law—renders it devoid of the good news it is meant to communicate. Paul warns that anyone who preaches a different gospel, even if they were an angel from heaven, is to be accursed. This underscores the centrality of Christ's redemptive work as the foundation of salvation and the necessity of adhering to the pure gospel without human interference.
Commentary