By James Akin, The Coming Home Network - Simply stated, the Protestant doctrine of sola Scriptura (“Scripture alone”) teaches that every teaching in Christian theology (everything pertaining to “faith and practice”) must be able to be derived from Scripture alone. This is expressed by the Reformation slogan Quod non est biblicum, non est theologicum (“What is not biblical is not theological.”… An essential part of this doctrine, as it has been historically articulated by Protestants, is that theology must be done without allowing Tradition or a Magisterium (teaching authority) any binding authority.