Sola Scriptura

Sola scriptura, Latin for 'by scripture alone', did not mean that Luther and Calvin discarded church tradition entirely; they ranked it beneath scripture. At the Diet of Worms in 1521 Luther refused to recant unless shown his error from scripture and plain reason.

The principle became the formal foundation of the Lutheran and Reformed churches. It was also a mark of the Hussites, who held the Bible above church tradition.