(11) These, then, or the chief of them, we will now go through. (12) First, in the story of Judah and Tamar (Gen. xxxviii.) the historian thus begins: "And it came to pass at that time that Judah went down from his brethren." (13) This time cannot refer to what immediately precedes [Endnote 13], but must necessarily refer to something else, for from the time when Joseph was sold into Egypt to the time when the patriarch Jacob, with all his family, set out thither, cannot be reckoned as more than twenty-two years, for Joseph, when he was sold by his brethren, was seventeen years old, and when he was summoned by Pharaoh from prison was thirty; if to this we add the seven years of plenty and two of famine, the total amounts to twenty-two years. (14) Now, in so short a period, no one can suppose that so many things happened as are described; that Judah had three children, one after the other, from one wife, whom he married at the beginning of the period; that the eldest of these, when he was old enough, married Tamar, and that after he died his next brother succeeded to her; that, after all this, Judah, without knowing it, had intercourse with his daughter-in-law, and that she bore him twins, and, finally, that the eldest of these twins became a father within the aforesaid period. (15) As all these events cannot have taken place within the period mentioned in Genesis, the reference must necessarily be to something treated of in another book: and Ezra in this instance simply related the story, and inserted it without examination among his other writings. (16) However, not only this chapter but the whole narrative of Joseph and Jacob is collected and set forth from various histories, inasmuch as it is quite inconsistent with itself. (17) For in Gen. xlvii. we are told that Jacob, when he came at Joseph's bidding to salute Pharaoh, was 130 years old. (18) If from this we deduct the twenty-two years which he passed sorrowing for the absence of Joseph and the seventeen years forming Joseph's age when he was sold, and, lastly, the seven years for which Jacob served for Rachel, we find that he was very advanced in life, namely, eighty four, when he took Leah to wife, whereas Dinah was scarcely seven years old when she was violated by Shechem, [Endnote 14]. (19) Simeon and Levi were aged respectively eleven and twelve when they spoiled the city and slew all the males therein with the sword.