“Bonhoeffer expressed his personal piety in his reading of Scripture, daily meditation and prayer. These practices influenced his perception and response to external ‘social and political realities.’ Throughout his life, Bonhoeffer used the Moravians’ daily Bible texts called Losungen (“watch words”) for his daily devotions. Each day included verses from both the Old and New Testaments. These texts had a great influence on his life and greatly influenced his decision to return to Germany in 1939. In addition to meditative reading of Scripture, Bonhoeffer’s most powerful discipline was prayer.”

Cannon, Mae Elise. Just Spirituality: How Faith Practices Fuel Social Action. Downers Grove, Ill.: InterVarsity Press, 2013, p. 44.