Tertullian

“ For what wars should we not be fit, not eager, even with unequal forces, we who so willingly yield ourselves to the sword, if in our religion it were not counted better to be slain than to slay? Without arms even, and raising no insurrectionary banner, but simply in enmity to you, we could carry on the contest with you by an ill-willed severance alone. ”

“ If we are enjoined, then, to love our enemies, as I have remarked above, whom have we to hate? If injured, we are forbidden to retaliate, lest we become as bad ourselves: who can suffer injury at our hands? In regard to this, recall your own experiences. How often you inflict gross cruelties on Christians, partly because it is your own inclination, and partly in obedience to the laws! How often, too, the hostile mob, paying no regard to you, takes the law into its own hand, and assails us with stones and flames! ”

“ If we desired, indeed, to act the part of open enemies, not merely of secret avengers, would there be any lacking in strength, whether of numbers or resources? The Moors, the Marcomanni, the Parthians themselves, or any single people, however great, inhabiting a distinct territory, and confined within its own boundaries, surpasses, forsooth, in numbers, one spread over all the world! ”