Of the future both the angels of God and the demons are alike ignorant: yet they make predictions. God reveals the future to the angels and commands them to prophesy, and so what they say comes to pass. But the demons also make predictions, sometimes because they see what is happening at a distance, and sometimes merely making guesses: hence much that they say is false and they should not be believed, even although they do often, in the way we have said, tell what is true. Besides they know the Scriptures.