But, these instances excepted, whosoever kills incurs the guilt of murder.”[255] It appears, then, fathers, that the right of taking away the life of man is the sole prerogative of God, and that having ordained laws for executing death on criminals, he has deputed kings or commonwealths as the depositaries of that power—a truth which St. Paul teaches us, when, speaking of the right which sovereigns possess over the lives of their subjects, he deduces it from Heaven in these words: “He beareth not the sword in vain; for he is the minister of God to execute wrath upon him that doeth evil.” (Rom. xiii. 4.) But as it is God who has put this power into their hands, so he requires them to exercise it in the same manner as he does himself; in other words, with perfect justice; according to what St. Paul observes in the same passage: “Rulers are not a terror to good works, but to the evil. Wilt thou, then, not be afraid of the power? Do that which is good: for he is the minister of God to thee for good.” And this restriction, so far from lowering their prerogative, exalts it, on the contrary, more than ever; for it is thus assimilated to that of God, who has no power to do evil, but is all-powerful to do good; and it is thus distinguished from that of devils, who are impotent in that which is good, and powerful only for evil. There is this difference only to be observed betwixt the King of Heaven and earthly sovereigns, that God, being justice and wisdom itself, may inflict death instantaneously on whomsoever and in whatsoever manner he pleases; for, besides his being the sovereign Lord of human life, it is certain that he never takes it away either without cause or without judgment, because he is as incapable of injustice as he is of error. Earthly potentates, however, are not at liberty to act in this manner; for, though the ministers of God, still they are but men, and not gods. They may be misguided by evil counsels, irritated by false suspicions, transported by passion, and hence they find themselves obliged to have recourse, in their turn also, to human agency, and appoint magistrates in their dominions, to whom they delegate their power, that the authority which God has bestowed on them may be employed solely for the purpose for which they received it.