12 The Egyptians, moreover, because they are more base and stupid than every people that is on the earth, have themselves erred more than all. For the deities (or religion) of the Barbarians and the Greeks did not suffice for them, but they introduced some also of the nature of the animals, and said thereof that they were gods, and likewise of creeping things which are found on the dry land and in the waters. And of plants and herbs they said that some of them were gods. And they were corrupted by every kind of delusion and defilement more than every people that is on the earth. For from ancient times they worshipped Isis, and they say that she is a goddess whose husband was Osiris her brother. And when Osiris was killed by Typhon his brother, Isis fled with Horos her son to Byblus in Syria, and was there for a certain time till her son was grown. And he contended with Typhon his uncle, and killed him. And then Isis returned and went about with Horos her son and sought for the dead body of Osiris her lord, bitterly lamenting his death. If then Isis be a goddess, and could not help Osiris her brother and lord, how can she help another? But it is impossible that a divine nature should be afraid, and flee for safety, or should weep and wail; or else it is very miserable.
And of Osiris also they say that he is a serviceable god. And he was killed by Typhon and was unable to help himself. But it is well known that this cannot be asserted of divinity. And further, they say of his brother Typhon that he is a god, who killed his brother and was killed by his brother's son and by his bride, being unable to help himself. And how, pray, is he a god who does not save himself?
As the Egyptians, then, were more stupid than the rest of the nations, these and such like gods did not suffice for them. Nay, but they even apply the name of gods to animals in which there is no soul at all. For some of them worship the sheep and others the calf; and some the pig and others the shad fish; and some the crocodile and the hawk and the fish and the ibis and the vulture and the eagle and the raven. Some of them worship the cat, and others the turbotfish, some the dog, some the adder, and some the asp, and others the lion; and others the garlic and onions and thorns, and others the tiger and other such things. And the poor creatures do not see that all these things are nothing, although they daily witness their gods being eaten and consumed by men and also by their fellows; while some of them are cremated, and some die and decay and become dust, without their observing that they perish in many ways. So the Egyptians have not observed that such things which are not equal to their own deliverance, are not gods. And if, forsooth, they are weak in the case of their own deliverance, whence have they power to help in the case of deliverance of their worshippers? Great then is the error into which the Egyptians wandered—greater, indeed, than that of any people which is upon the face of the earth.
Source: The Apology (New Advent)