Philo Judaeus De Praemiis Et Poenis Et De Exsecrationibus 134

And such a complete scarcity of all necessary things will seize the people that, being wholly destitute of and indifferent to them, they will turn even to devouring one another, eating not only the gentiles and those who are no relations to them, but even their nearest and dearest kinsfolk; for the father will ¹ take of the flesh of his son, and the mother will eat of the life-blood of her daughter, brothers will eat their brothers, and children will devour their parents; and, in fact, the weaker will be continually the prey of the more powerful; and that wicked and accursed food, that of Thyestes, will seem to them like a joke when compared with the excessive and intolerable evils which their necessities bring upon them;