Histories

Distraught by the death of his son, Croesus cried out the more vehemently because the killer was one whom he himself had cleansed of blood,

and in his great and terrible grief at this mischance he called on Zeus by three names—Zeus the Purifier, Zeus of the Hearth, Zeus of Comrades: the first, because he wanted the god to know what evil his guest had done him; the second, because he had received the guest into his house and thus unwittingly entertained the murderer of his son; and the third, because he had found his worst enemy in the man whom he had sent as a protector.