His controversial yet Christ-centered beliefs were formed not only in the classrooms of Tübingen, but also in the cells of Tegel Prison.

He insisted on thinking through his theology for himself—and often found himself out of step with his age.

At stake in the church's first general council was the simplest, yet most profound, question: Who is Jesus Christ?

If Jesus was truly God, how could he be truly human as well? Leo the Great helped guide a critical council to a clear answer.

The massive treatise set forth a theological system so influential it has been declared eternally valid.

Responding to the Reformation, the council charted the Catholic church's course for the next 400 years.

The famous emperor ended the persecution of Christians. But was he a true believer, or merely a superstitious political opportunist?

Three great Bible truths were central to all of Moody's preaching.

The Waldensians from the 12th Century to the Protestant Reformation

In late November 1525, Schwenckfeld traveled almost 100 miles on horseback from Liegnitz to Wittenberg the fountainhead of the reform movement, and met with Martin Luther and some of his Wittenberg colleagues.

It's being much-mentioned and much-lauded during all the millennial celebrations, but what, really, is this Christian faith that's so unfamiliar to most Western Protestants? Here's an introduction.

Augustine on Teachers and Teaching

Selections From Confession of Faith which all the citizens and inhabitants of Geneva and the subjects of the country must promise to keep and hold. (1536)