For now the understanding of mankind leaped asunder from God; and going lower in their ideas and imaginations, they gave the honour due to God first to the heaven and the sun and moon and the stars, thinking them to be not only gods, but also the causes of the other gods lower than themselves. Then, going yet lower in their dark imaginations, they gave the name of gods to the upper æther and the air and the things in the air. Next, advancing further in evil, they came to celebrate as gods the elements and the principles of which bodies are composed, heat and cold and dryness and wetness. 2. But just as they who have fallen flat creep in the slime like land-snails, so the most impious of mankind, having fallen lower and lower from the idea of God, then set up as gods men, and the forms of men, some still living, others even after their death. Moreover, counselling and imagining worse things still, they transferred the divine and supernatural name of God at last even to stones and stocks, and creeping things both of land and water, and irrational wild beasts, awarding to them every divine honour, and turning from the true and only real God, the Father of Christ. 3. But would that even there the audacity of these foolish men had stopped short, and that they had not gone further yet in impious self-confusion. For to such a depth have some fallen in their understanding, to such darkness of mind, that they have even devised for themselves, and made gods of things that have no existence at all, nor any place among things created. For mixing up the rational with the irrational, and combining things unlike in nature, they worship the result as gods, such as the dog-headed and snake-headed and ass-headed gods among the Egyptians, and the ram-headed Ammon among the Libyans. While others, dividing apart the portions of men's bodies, head, shoulder, hand, and foot, have set up each as gods and deified them, as though their religion were not satisfied with the whole body in its integrity. 4. But others, straining impiety to the utmost, have deified the motive of the invention of these things and of their own wickedness, namely, pleasure and lust, and worship them, such as their Eros, and the Aphrodite at Paphos. While some of them, as if vying with them in depravation, have ventured to erect into gods their rulers or even their sons, either out of honour for their princes, or from fear of their tyranny, such as the Cretan Zeus, of such renown among them, and the Arcadian Hermes; and among the Indians Dionysus, among the Egyptians Isis and Osiris and Horus, and in our own time Antinous, favourite of Hadrian, Emperor of the Romans, whom, although men know he was a mere man, and not a respectable man, but on the contrary, full of licentiousness, yet they worship for fear of him that enjoined it. For Hadrian having come to sojourn in the land of Egypt, when Antinous the minister of his pleasure died, ordered him to be worshipped; being indeed himself in love with the youth even after his death, but for all that offering a convincing exposure of himself, and a proof against all idolatry, that it was discovered among men for no other reason than by reason of the lust of them that imagined it. According as the wisdom of God testifies beforehand when it says, “The devising of idols was the beginning of fornication.” 5. And do not wonder, nor think what we are saying hard to believe, inasmuch as it is not long since, even if it be not still the case that the Roman Senate vote to those emperors who have ever ruled them from the beginning, either all of them, or such as they wish and decide, a place among the gods, and decree them to be worshipped. For those to whom they are hostile, they treat as enemies and call men, admitting their real nature, while those who are popular with them they order to be worshipped on account of their virtue, as though they had it in their own power to make gods, though they are themselves men, and do not profess to be other than mortal. 6. Whereas if they are to make gods, they ought to be themselves gods; for that which makes must needs be better than that which it makes, and he that judges is of necessity in authority over him that is judged, while he that gives, at any rate that which he has, confers a layout, just as, of course, every king, in giving as a favour what he has to give, is greater and in a higher position than those who receive. If then they decree whomsoever they please to be gods, they ought first to be gods themselves. But the strange thing is this, that they themselves by dying as men, expose the falsehood of their own vote concerning those deified by them.
10. Similar human origin of the Greek gods, by decree of Theseus. The process by which mortals became deified.
But this custom is not a new one, nor did it begin from the Roman Senate: on the contrary, it had existed previously from of old, and was formerly practised for the devising of idols. For the gods renowned from of old among the Greeks, Zeus, Poseidon, Apollo, Hephæstus, Hermes, and, among females, Hera and Demeter and Athena and Artemis, were decreed the title of gods by the order of Theseus, of whom Greek history tells us; and so the men who pass such decrees die like men and are mourned for, while those in whose favour they are passed are worshipped as gods. What a height of inconsistency and madness! knowing who passed the decree, they pay greater honour to those who are the subjects of it. 2. And would that their idolatrous madness had stopped short at males, and that they had not brought down the title of deity to females. For even women, whom it is not safe to admit to deliberation about public affairs, they worship and serve with the honour due to God, such as those enjoined by Theseus as above stated, and among the Egyptians Isis and the Maid and the Younger one, and among others Aphrodite. For the names of the others I do not consider it modest even to mention, full as they are of all kind of grotesqueness. 3. For many, not only in ancient times but in our own also, having lost their beloved ones, brothers and kinsfolk and wives; and many women who had lost their husbands, all of whom nature proved to be mortal men, made representations of them and devised sacrifices, and consecrated them; while later ages, moved by the figure and the brilliancy of the artist, worshipped them as gods, thus falling into inconsistency with nature. For whereas their parents had mourned for them, not regarding them as gods (for had they known them to be gods they would not have lamented them as if they had perished; for this was why they represented them in an image, namely, because they not only did not think them gods, but did not believe them to exist at all, and in order that the sight of their form in the image might console them for their being no more), yet the foolish people pray to them as gods and invest them with the honour of the true God. 4. For example, in Egypt, even to this day, the death-dirge is celebrated for Osiris and Horus and Typho and the others. And the caldrons at Dodona, and the Corybantes in Crete, prove that Zeus is no god but a man, and a man born of a cannibal father. And, strange to say, even Plato, the sage admired among the Greeks, with all his vaunted understanding about God, goes down with Socrates to Peiræus to worship Artemis, a figment of man's art.
11. The deeds of heathen deities, and particularly of Zeus.
Source: Against the Heathen (New Advent)