The prevailing scholarly view is that Joshua is not a factual account of historical events.[1][21]:4 The apparent setting of Joshua is the 13th century BCE;[21] this was a time of widespread city-destruction, but with a few exceptions (Hazor, Lachish) the destroyed cities are not the ones the Bible associates with Joshua, and the ones it does associate with him show little or no sign of even being occupied at the time.[22]:71-72 Given its lack of historicity, Carolyn Pressler in her commentary for the Westminster Bible Companion series suggests that readers of Joshua should give priority to its theological message ("what passages teach about God") and be aware of what these would have meant to audiences in the 7th and 6th centuries BCE.[23]:5–6 Richard Nelson explains: The needs of the centralised monarchy favoured a single story of origins, combining old traditions of an exodus from Egypt, belief in a national god as "divine warrior," and explanations for ruined cities, social stratification and ethnic groups, and contemporary tribes.[24]:5