The City of God, Volume I

13. Of the invisible God, who has often made Himself visible, not as He really is, but as the beholders could bear the sight.

Neither need we be surprised that God, invisible as He is, should often have appeared visibly to the patriarchs. For as the sound which communicates the thought conceived in the silence of the mind is not the thought itself, so the form by which God, invisible in His own nature, became visible, was not God Himself. Nevertheless it is He Himself who was seen under that form, as that thought itself is heard in the sound of the voice; and the patriarchs recognised that, though the bodily form was not God, they saw the invisible God. For, though Moses conversed with God, yet he said, 'If I have found grace in Thy sight, show me Thyself, that I may see and know Thee.'[401] And as it was fit that the law, which was given, not to one man or a few enlightened men, but to the whole of a populous nation, should be accompanied by awe-inspiring signs, great marvels were wrought, by the ministry of angels, before the people on the mount where the law was being given to them through one man, while the multitude beheld the awful appearances. For the people of Israel believed Moses, not as the Lacedæmonians believed their Lycurgus, because he had received from Jupiter or Apollo the laws he gave them. For when the law which enjoined the worship of one God was given to the people, marvellous signs and earthquakes, such as the divine wisdom judged sufficient, were brought about in the sight of all, that they might know that it was the Creator who could thus use creation to promulgate His law.

14. That the one God is to be worshipped not only for the sake of eternal blessings, but also in connection with temporal prosperity, because all things are regulated by His providence.

The education of the human race, represented by the people of God, has advanced, like that of an individual, through certain epochs, or, as it were, ages, so that it might gradually rise from earthly to heavenly things, and from the visible to the invisible. This object was kept so clearly in view, that, even in the period when temporal rewards were promised, the one God was presented as the object of worship, that men might not acknowledge any other than the true Creator and Lord of the spirit, even in connection with the earthly blessings of this transitory life. For he who denies that all things, which either angels or men can give us, are in the hand of the one Almighty, is a madman. The Platonist Plotinus discourses concerning providence, and, from the beauty of flowers and foliage, proves that from the supreme God, whose beauty is unseen and ineffable, providence reaches down even to these earthly things here below; and he argues that all these frail and perishing things could not have so exquisite and elaborate a beauty, were they not fashioned by Him whose unseen and unchangeable beauty continually pervades all things.[402] This is proved also by the Lord Jesus, where He says, 'Consider the lilies, how they grow; they toil not, neither do they spin. And yet I say unto you that Solomon in all his glory was not arrayed like one of these. But if God so clothe the grass of the field, which to-day is and to-morrow is cast into the oven, how much more shall He clothe you, O ye of little faith!'[403] It was best, therefore, that the soul of man, which was still weakly desiring earthly things, should be accustomed to seek from God alone even these petty temporal boons, and the earthly necessaries of this transitory life, which are contemptible in comparison with eternal blessings, in order that the desire even of these things might not draw it aside from the worship of Him, to whom we come by despising and forsaking such things.