4 But why do you think that the gods can avail on behalf of the Romans, when you see that they can do nothing for their own worshipers in opposition to the Roman arms? For we know that the gods of the Romans are indigenous. Romulus was made a god by the perjury of Proculus, and Picus, and Tiberinus, and Pilumnus, and Consus, whom as a god of treachery Romulus would have to be worshipped, just as if he had been a god of counsels, when his perfidy resulted in the rape of the Sabines.
Tatius also both invented and worshipped the goddess Cloacina; Hostilius, Fear and Paleness. By and by, I know not by whom, Fever was dedicated, and Acca and Flora the harlots. These are the Roman gods. But Mars is a Thracian, and Jupiter a Cretan, and Juno either Argive or Samian or Carthaginian, and Diana of Taurus, and the mother of the gods of Ida; and there are Egyptian monsters, not deities, who assuredly, if they had had any power, would have preserved their own and their people's kingdoms. Certainly there are also among the Romans the conquered Penates whom the fugitive Aeneas introduced there. There is also Venus the bald—far more dishonoured by the fact of her baldness in Rome than by her having been wounded in Homer.
Source: The Treatises of Cyprian (New Advent)