How do we know the true gospel is being preached?

Knowing the true gospel involves discerning whether it wholly aligns with Scripture and emphasizes Christ's sufficiency for salvation. Paul emphasizes in Galatians 1:8-9 that any deviation from the gospel he preached should be considered accursed. The true gospel is not a human invention; it is revealed by Jesus Christ and centered on His life, death, and resurrection. Therefore, any teaching that adds to or alters the message of Christ threatens the very essence of salvation. Believers are urged to hold tightly to the original gospel revealed in the Scriptures, ensuring that their faith stands firm against any misleading doctrines.