Augustine of Hippo

It is conceivable that here there may have been an allusion to the Trinity, if we suppose that the Father said to the Son and the Holy Spirit, "Come, let us descend and confound their tongue." The supposition is sound. But if so, we must rule out the possibility that angels were meant. And surely it is more proper for the angels to come to God unbidden, moved by grace, that is, by the thoughts that make them devoutly submissive to unchanging truth, as to the eternal law that rules their heavenly court. The angels are not their own criterion of truth, but, depending on creative truth, they move unbidden toward it as toward a fountain of life from which they must imbibe what they do not have of themselves. And their motion is without change, since they keep coming, never to depart.