1 These words of ours, however, [gracious] Sovereign, may well appear superfluous in your ears, convinced as you are, by frequent and personal experience, of our Saviour's Deity; yourself also, in actions still more than words, a herald of the truth to all mankind. Yourself, it may be, will vouchsafe at a time of leisure to relate to us the abundant manifestations which your Saviour has accorded you of his presence, and the oft-repeated visions of himself which have attended you in the hours of sleep.
I speak not of those secret suggestions which to us are unrevealed: but of those principles which he has instilled into your own mind, and which are fraught with general interest and benefit to the human race. You will yourself relate in worthy terms the visible protection which your Divine shield and guardian has extended in the hour of battle; the ruin of your open and secret foes; and his ready aid in time of peril. To him you will ascribe relief in the midst of perplexity; defence in solitude; expedients in extremity; foreknowledge of events yet future; your forethought for the general good; your power to investigate uncertain questions; your conduct of most important enterprises; your administration of civil affairs; your military arrangements, and correction of abuses in all departments; your ordinances respecting public right; and, lastly, your legislation for the common benefit of all.
You will, it may be, also detail to us those particulars of his favor which are secret to us, but known to you alone, and treasured in your royal memory as in secret storehouses. Such, doubtless, are the reasons, and such the convincing proofs of your Saviour's power, which caused you to raise that sacred edifice which presents to all, believers and unbelievers alike, a trophy of his victory over death, a holy temple of the holy God: to consecrate those noble and splendid monuments of immortal life and his heavenly kingdom: to offer memorials of our Almighty Saviour's conquest which well become the imperial dignity of him by whom they are bestowed.
With such memorials have you adorned that edifice which witnesses of eternal life: thus, as it were in imperial characters, ascribing victory and triumph to the heavenly Word of God: thus proclaiming to all nations, with clear and unmistakable voice, in deed and word, your own devout and pious confession of his name.
Source: Oration in Praise of Constantine (New Advent)