Clement of Alexandria The Instructor Book I For if rulers are not a terror to a good work, how shall God, who is by nature good, be a terror to him who sins not? "If thou doest evil, be afraid,"[216] Cyprian Treatise XII Three Books of Testimonies Against the Jews In the Epistle of Paul to the Romans: "Wilt thou not be afraid of the power? Do that which is good, and thou shall have praise of it."[593]