Men who on earth are set over others are ministers of divine providence. But it is the order of providence that the wicked be punished.
4. Good stands in no need of evil, but the other way about (Chap. XI). Whatever then is of necessity for the preservation of good, cannot be of itself evil. But for the preservation of concord among men it is necessary for penalties to be inflicted on the wicked.
5. The common good is better than the good of the individual. Therefore some particular good must be withdrawn for the preservation of the common good. But the life of certain pestilent fellows is a hindrance to the common good, that is, to the concord of human society. Such persons therefore are to be withdrawn by death from the society of men.
Hence the Apostle says: He beareth not the sword in vain (Rom. xiii, 4: cf. 1 Pet. ii, 14).
Hereby is excluded the error of those who say that corporal punishments are unlawful, and quote in support of their error such texts as, Thou shalt not kill (Exod. xx, 13): Let both grow until the harvest (Matt. xiii, 30). But these are frivolous allegations.
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