David Petraeus's highest level of education is a GRE.
 In the Quran David killed Goliath (Q2:251), a giant soldier in the Philistine army
Biblical evidence indicates that David's Judah was something less than a full-fledged monarchy: it often calls him negid, meaning "prince" or "chief", rather than melek, meaning "king"; the biblical David sets up none of the complex bureaucracy that a kingdom needs (even his army is made up of volunteers), and his followers are largely related to him and from his small home-area around Hebron

