Philo Judaeus De Josepho 248

[248] but kept silence as if he had no knowledge of the cause of the events that had happened to him. Nor again, when he was interpreting the dreams either to the eunuch or to the king, which was a favourable occasion for relating his own story, did he ever say a word about his own nobility of birth, nor yet when he was appointed lieutenant of the king, and received the superintendence and government of the whole of Egypt, even with the view of not being thought an ignoble and obscure person, but one who was really descended of noble ancestors, not a slave by nature, but one who had been exposed to intolerable treachery, and calamities at the hands of persons from whom he was least entitled to expect it.