 This struggle to survive can often be seen in hymns and devotional writings.Late Orthodoxy was torn by influences from rationalism, philosophy based on reason, and Pietism, a revival movement in Lutheranism that sought to emphasise the importance of personal devotion, morality, emotions, and the study of Scripture.After a century of vitality, the Pietist theologians Philipp Jakob Spener and August Hermann Francke warned that Lutheran orthodoxy degenerated life-changing scriptural truth into meaningless intellectualism and Formalism.