Kingdom and Polity in Eusebius of Caesarea

Eusebius of Caesarea occupies a unique position in ancient Christian thought. His central problem is to explain and justify a Christian society which is to transform the Roman Empire and which will become the new world civilization supplanting Hellenism and Judaism. Earlier thinkers do not face this problem. The Roman Empire is for them one of the powers ordained of God, but it is pagan and they expect it to remain so. Consequently the question of human government is only peripheral to their thought. Nor do later thinkers see the problem quite as Eusebius does. In the East, for example in Pseudo-Dionysius and John of Damascus, the question of human government again becomes peripheral to Christian thought, and Eusebius has no successor as a “political theologian.” In the West, Augustine gives a general answer to the problem of a Christian society in a Christianized Empire, but his solution contradicts that of Eusebius. To Augustine, the structure of the Christian Roman Empire is still that of Babylon, and human society is still a mixture of two opposed cities, the earthly city and the city of God.