ISIS is going around destroying any and all historical sites that belong to any religion besides Islam.

But they may have just unwittingly helped prove the veracity of at least one book of the Bible.

While occupying the Iraqi city of Mosul, ISIS demolished the traditional Tomb of Jonah, the biblical prophet tasked with preaching to the people of the Assyrian capital of Nineveh.

After ISIS was recently pushed out of Mosul, archaeologists had a chance to examine the wreckage, and made a stunning discovery.

Fox News reported that below the ancient tomb lies the long-lost palace of the Assyrian King Sennacherib, whose invasion of Judah and miraculous defeat before the walls of Jerusalem is extensively documented in the Bible.

In the palace, archaeologists have begun to uncover ancient inscriptions and documents from the time of Sennacherib, his son King Esarhaddon, and his son King Ashurbanipal.

The find is one of the more exciting archeological finds in recent years, and provides yet further evidence that the biblical account of Middle East history is accurate.