The Second Temple demonological picture that emerges is one that conceptually unifies the three rebellions with Satan as overlord in command of the fallen sons of God (who are imprisoned for their transgression), demonic disembodied spirits of the giants (a tenth of which are allowed to harass humanity), and the lesser gods allotted to the nations in the judgment at Babel. This portrait closely resembles what we will encounter in the demonology of the New Testament. Michael Heiser