Clement of Alexandria The Instructor Book II For there is no use of a sleeping man, as there is not of a dead man. Wherefore we ought often to rise by night and bless God.[180] Tertullian On Prayer (from praying) in public? In every place, he means, which opportunity or even necessity, may have rendered suitable: for that which was done by the apostles[162] Cyprian Treatise XII Three Books of Testimonies Against the Jews Of this same thing in the Acts of the Apostles: "But about the middle of the night Paul and Silas prayed and gave thanks to God, and the prisoners heard them."[468]