St. Justinian the Great
“The two greatest gifts which God in His infinite goodness has granted men are the Priesthood and the Empire. The priesthood takes care of divine interests and the empire of human interests of which is has supervision. Both powers emanate from the same principle and bring human life to its perfection. It is for this reason that emperors have nothing closer to their hearts than the honor of priests because they pray continually to God for the emperors. When the clergy shows a proper spirit and devotes itself entirely to God, and the emperor governs the state which is entrusted to him, then a harmony results which is most profitable to the human race. So it is then that the true divine teachings and the honor of the clergy are the first among our preoccupations.” Saint Justinian, Novella Six
