Sola scriptura—Scripture alone—is sometimes called the formal principle of the Protestant Reformation. That is to say, the Bible is the only authoritative source from which Christianity is derived.

Collectively evangelicals seem to have drifted far from that principle, and evangelicalism is taking on some strange shapes.

List some of the authority sources for today’s evangelicalism (or for popular evangelical leaders). Then discuss the implications of abandoning sola scriptura.