Not being a biblical scholar, nor much up on the history of Ancient Mesopotamia I feel I tend to struggle with this.
Since I'm well aware of the nature of how The bible was written and how it is inconsistent or vile and how predictions of the future are useful if they comes as Commandment XVI: thou shalt attend to microbial organisms and wash they hands before every meal or surgery but significantly less so when they are 'a messiah shall be born' sort.
Basically I find it rather hard to intellectually grapple with the idea that people think a book predicts the future.
Countering arguments from design, first-cause, morality and 'the dualism of the supernatural' I'm quiet at home with but I continue to feel all at sea over prophecy.
It's clearly nonsense but how to argue it as such to those who propose it?