  John of Damascus argued that because God is perfect, he is necessarily unique. The only way in which one god could be distinguished from another would be by coming “short of perfection in goodness, or power, or wisdom, or time, or place,” but in that case “he would not be God” (John of Damascus, 173). Aquinas offers a similar argument: If there were several gods, there would be several perfect beings but “if none of these perfect beings lacks some perfection,” and if none of them has “any admixture of imperfection …., nothing will be given in which to distinguish the perfect beings from one another” (Aquinas, 158).