44 But if you come to the conclusion that these fables have been written allegorically, what is to be done with the rest, which we see cannot be forced into such changes of sense? For what are we to substitute for the wrigglings into which the lustful heat of Semele's offspring forced him upon the sepulchral mound? And what for those Ganymedes who were carried off and set to preside over lustful practices? What for that conversion of an ant into which Jupiter, the greatest of the gods, contracted the outlines of his huge body? what for swans and satyrs?
What for golden showers, which the same seductive god put on with perfidious guile, amusing himself by changes of form?:that we may not seem to speak of Jupiter only, what allegories can there be in the loves of the other deities? What in their circumstances as hired servants and slaves? What in their bonds, bereavements, lamentations? What in their agonies, wounds, sepulchres? Now, while in this you might be held guilty in one respect for writing in such wise about the gods, you have added to your guilt beyond measure in calling base things by the names of deities, and again in defaming the gods by giving to them the names of infamous things.
But if you believed without any doubt that they were here close at hand, or anywhere at all, fear would check you in making mention of them, and your beliefs and unchanged thoughts should have been exactly as if they were listening to you and heard your words. For among men devoted to the services of religion, not only the gods themselves, but even the names of the gods should be reverenced, and there should De quite as much grandeur in their names as there is in those even who are thought of under these names.
Source: Against the Heathen (New Advent)