Flavius Josephus retold the main content of the Pentateuch in Books 1-4 of his Jewish Antiquities. His narrative generally follows the model set up by the Hebrew Bible and the Septuagint before him，while also present noteworthy divergence from the traditional version in the contemporary Judaism. On the one hand，in the Jewish Antiquities，Josephus makes use of the moral standard，style as well as idioms in the Hellenistic biographical literature and successfully created a series of Jewish ancestors，such as Abraham，Joseph and Moses，with typical virtues of Greek heroes. On the other hand，his reconstruction of biblical heroes is still restricted by traditional ideas in Judaism and sometimes damaged by the author’s personal negative attitude towards ancient civilizations of other nations. The tension between these two tendencies leaves certain contradictions and unsettled difficulties in the Jewish identity described in Josephus’ Jewish Antiquities.