Jonny mac

The psalmist wrote, "The law of the Lord is perfect, restoring the soul" (Psalm 19:7). That means Scripture is sufficient. Apart from the truths revealed to us in Scripture, there is no essential spiritual truth, no fundamental doctrine, nothing essential to soul-restoration. We do not need to look beyond the written Word of God for any essential doctrines. There is nothing necessary beyond what is recorded in God's Word.

This, of course, is the Reformation principle of sola Scriptura -- Scripture alone. According to the Bible itself, no supposed spiritual authority outside "the sacred writings" of Scripture can give us wisdom that leads to salvation. No papal decrees, no oral tradition, no latter-day prophecy can contain truth apart from Scripture that is genuinely fundamental.- John MacArthur