Excellent, so if God had raised up Pharaoh that he may demonstrate his power, which are the plagues of Egypt,
But I have raised you up for this very purpose, that I might show you my power and that my name might be proclaimed in all the earth. (Exodus 9:16 [NIV])
Where Egypt was just a small city, why would you not think God would do the same, against the entire world, to make his power known in even greater manner to all the nations of the world?
Therefore I will make the heavens tremble; and the earth will shake from its place at the wrath of the LORD Almighty, in the day of his burning anger. (Isaiah 13:13 [NIV])
Yes, there is much figure of speech in scripture, but there is also much plain prophecy. Because of your lack of belief in the power of God to bring wrath against in the whole world, when he clearly has demonstrated power in the past, literally, you take plain prophecy to be figure of speech.
The God we serve is a living God, who has actual power to perform what he says, literally. Believer sir, because your lack of belief will prevent you from inheriting the kingdom of God, just like Moses' lack of belief prevented him from entering the promised land.