Book XII — The Creation of Angels, Time, and the Origin of Evil

1. _That the nature of the angels, both good and bad, is one and the same._

It has already, in the preceding book, been shown how the two cities originated among the angels. Before I speak of the creation of man, and show how the cities took their rise, so far as regards the race of rational mortals, I see that I must first, so far as I can, adduce what may demonstrate that it is not incongruous and unsuitable to speak of a society composed of angels and men together; so that there are not four cities or societies,—two, namely, of angels, and as many of men,—but rather two in all, one composed of the good, the other of the wicked, angels or men indifferently.