Rabbi Levi ben Gersom was one of the foremost Jewish philosophers of the Middle Ages. His work, "The Wars of the Lord," is still studied with interest, not only for its own sake, but also for the influence it exerted on the thinking of Spinoza. In his commentary on Job, Rabbi Levi explains the difficulties of individual passages, and how the argument between Job and his friends develops. The Book of Job deals, primarily, with the problem of injustice in this world, namely, why the wicked prosper and the righteous suffer. This lead of course, to the greater problem of Divine Providence in this world, which in turn is connected with the question of God's omniscience and prescience of events and happenings in this world, as well as with the discussion of the nature of the human soul which is affected by the events an occurrences.