Deus absconditus (Christian theology)
Deus absconditus (Latin: "hidden God") refers to the Christian theological concept of the fundamental unknowability of the essence of God. The term is derived from the Old Testament of the Christian Bible, specifically from the Book of Isaiah: "Truly, you are a God who hides himself, Oh God of Israel, the Savior" (). This concept was particularly important for the theological thought of the medieval Christian theologians Thomas Aquinas, Nicholas of Cusa, and Martin Luther. Today, the Christian theological concept of Deus absconditus is primarily associated with the theology of Martin Luther and later Protestant theologians. Luther unfolded his views on Deus absconditus in his theological treatise De Servo Arbitrio in 1525. But he had already hinted at this idea in his lectures on the Book of Psalms and in his lecture on the Epistle to the Romans ten years earlier. The opposite of Deus absconditus in Lutheran theology is the concept of Deus revelatus ("revealed God"). In the Kingdom of France, the concept was important to the Jansenist movement, which included Blaise Pascal and Jean Racine. The French philosopher Lucien Goldmann would title a 1964 book on Pascal and Racine, The Hidden God: A Study of Tragic Vision in