The world, the flesh and the devil are not three separate enemies of the Christian. He works directly by deception, temptation, attack and possession. In Christ's ministry a. In unbelievers a. In believers a.
Demons are by nature the same kind of spirit beings as angels.
They are personal, intelligent beings. Demons have great intelligence. They're knowledge is not infinite. They learned it through thousands of years of experience and observation. This activity is blatant in primitive cultures.