Others of your writers, in their wantonness, even minister to your pleasures by vilifying the gods. Examine those charming farces of your Lentuli and Hostilii, whether in the jokes and tricks it is the buffoons or the deities which afford you merriment; such farces I mean as Anubis the Adulterer, and Luna of the masculine gender, and Diana under the lash, and the reading the will of Jupiter deceased, and the three famishing Herculeses held up to ridicule. Your dramatic literature, too, depicts all the vileness of your gods.
The Sun mourns his offspring cast down from heaven, and you are full of glee; Cybele sighs after the scornful swain, and you do not blush; you brook the stage recital of Jupiter's misdeeds, and the shepherd judging Juno, Venus, and Minerva. Then, again, when the likeness of a god is put on the head of an ignominious and infamous wretch, when one impure and trained up for the art in all effeminacy, represents a Minerva or a Hercules, is not the majesty of your gods insulted, and their deity dishonored?
Yet you not merely look on, but applaud. You are, I suppose, more devout in the arena, where after the same fashion your deities dance on human blood, on the pollutions caused by inflicted punishments, as they act their themes and stories, doing their turn for the wretched criminals, except that these, too, often put on divinity and actually play the very gods. We have seen in our day a representation of the mutilation of Attis, that famous god of Pessinus, and a man burnt alive as Hercules.
We have made merry amid the ludicrous cruelties of the noonday exhibition, at Mercury examining the bodies of the dead with his hot iron; we have witnessed Jove's brother, mallet in hand, dragging out the corpses of the gladiators. But who can go into everything of this sort? If by such things as these the honour of deity is assailed, if they go to blot out every trace of its majesty, we must explain them by the contempt in which the gods are held, alike by those who actually do them, and by those for whose enjoyment they are done.
This it will be said, however, is all in sport. But if I add— it is what all know and will admit as readily to be the fact— that in the temples adulteries are arranged, that at the altars pimping is practised, that often in the houses of the temple-keepers and priests, under the sacrificial fillets, and the sacred hats, and the purple robes, amid the fumes of incense, deeds of licentiousness are done, I am not sure but your gods have more reason to complain of you than of Christians.
It is certainly among the votaries of your religion that the perpetrators of sacrilege are always found, for Christians do not enter your temples even in the day-time. Perhaps they too would be spoilers of them, if they worshipped in them. What then do they worship, since their objects of worship are different from yours? Already indeed it is implied, as the corollary from their rejection of the lie, that they render homage to the truth; nor continue longer in an error which they have given up in the very fact of recognizing it to be an error. Take this in first of all, and when we have offered a preliminary refutation of some false opinions, go on to derive from it our entire religious system.
Source: The Apology (New Advent)