At the heart of the Protestant movement are the five solae, particularly sola fide and sola Scriptura (more on these two doctrines in a bit). Additionally, other doctrines have (with few exceptions) united the various historic Protestant traditions, such as belief in two sacraments, the priesthood of all believers, a shorter Old Testament canon, church discipline as a mark of the church, an emphasis on preaching in worship, a celebration of lay participation in communion in both kinds (both bread and wine), an affirmation of the right of clergy to marry, and many other points.
Some of Protestantism’s core doctrines.
