The Theological Background of the Demonic

The first video was basicly looking at the question of demonic possessions and asking, when we look at this phenomena to day, can those things that we see be explained by naturalistic means? And i try to make the argument that there's no need for a supernatural explanation. So that was the first part, but now we're gong to get into the theological background of the demonic. Along with that, i want to do some just basic biblical study and kind of biblical questions and related to demons.