Ante-Nicene Fathers, Vol IX:
The Epistles of Clement.: Chapter LXI

Chapter LXI.—Prayer Continued—For Rulers and Governors.  Conclusion.

To our rulers and governors on the earth—to them Thou, Lord, gavest the power of the kingdom by Thy glorious and ineffable might, to the end that we may know the glory and honour given to them by Thee and be subject to them, in nought resisting Thy will; to them, Lord, give health, peace, concord, stability, that they may exercise the authority given to them without offence.  For Thou, O heavenly Lord and King eternal, givest to the sons of men glory and honour and power over the things that are on the earth; do Thou, Lord, direct their counsel according to that which is good and well-pleasing in Thy sight, that, devoutly in peace and meekness exercising the power given them by Thee, they may find Thee propitious.  O Thou, who only hast power to do these things and more abundant good with us, we praise Thee through the High Priest and Guardian of our souls Jesus Christ, through whom be glory and majesty to Thee both now and from generation to generation and for evermore.  Amen.