What does the Bible say about the importance of Protestantism?

Protestantism, rooted in the historical Reformation, centers on the authority of Scripture and justification by faith alone, as articulated in passages like Romans 1:16-17 and Ephesians 2:8-9. These scriptures underscore that salvation depends not on human merit but on divine grace received through faith. Emphasizing the lost doctrine of sufficiency in Christ and the necessity of Scripture as the ultimate authority, the Protestant faith seeks to protect the believer from error and prevent the encroachment of false teachings from traditions that diverge from biblical truth.