The Republic by Plato Part 2 Page 70

No, we shall never mention the battles of the giants, or let them be embroidered on garments; and we shall be silent about the innumerable other quarrels of gods and heroes with their friends and relatives. If they would only believe us we would tell them that quarrelling is unholy, and that never up to this time has there been any quarrel between citizens; this is what old men and old women should begin by telling children; and when they grow up, the poets also should be told to compose for them in a similar spirit.

But the narrative of Hephaestus binding Here his mother, or how on another occasion Zeus sent him flying for taking her part when she was being beaten, and all the battles of the gods in Homer — these tales must not be admitted into our State, whether they are supposed to have an allegorical meaning or