Along with this belief, come a certain amount of clandestine way of being. They might describe themselves as "tricksters" and think this is a good thing. From this angel they may hang out where Christians hang out, interject some gobbledegook or some insults and in various ways derail the conversation. I would not believe it, if it had not happened to me several times now. If you are not easy fodder, they will block and defriend you, or else continue to be rude. Something gives them the internal go-ahead to be this way. They are missionaries of some kind, sometimes of Plato, who thought of higher things, supposedly. When you actually read Plato, what he has to say about society does not seem terribly High, at all. There is some woeful, horrible stuff. And what goes as literature, quite often, does not seem to be that High, either. So, we can see that there is a lot of self-praise, always the easiest kind to obtain. A lot of what they do and say, is actually easy and facile, and facts nor consistency need to matter, at all. The whole picture can be let go. (They have got something higher going on.)
Whence the Devil?
These are assured facts: The angels fell, and the devil was turned into an angel of darkness from an angel of light....
Let it, then, suffice for us to know that there re good and evil angels, but that God created them all equally good. thence it follows of necessity that the evil angels fell and did not stand firm in the truth. But how this happened is not known. However, it is very probably that they fell by pride, because they despised the Word, or the Son of God, and wanted to exalt themselves above Him.
(What Luther Says: P. 391)