Though considered one of the most important informants about Judaism in the first century CE, the Jewish historian Flavius Josephus's testimony is often overlooked or downplayed. Jonathan Klawans's Josephus and the Theologies of Ancient Judaism reexamines Josephus's descriptions of sectarian disagreements concerning determinism and free will, the afterlife, and scriptural authority. In each case, Josephus's testimony is analyzed in light of his works'...