The Bible prophecy about Tyre (Ezekiel 26) shows that we need to know ancient history from secular sources outside the Bible, to see how the Bible prophecies are fulfilled.
Ezekiel predicted the destruction of the rich kingdom of Tyre, in Ezekiel 26-28. The Bible itself never describes the fulfillment of Ezekiel's dire predictions against that ancient Phoenician city. Ezekiel just says that Tyre would be attacked by many nations, the coastal city people would get slaughtered, its building materials dumped into the sea, and the rich, boastful island-Tyre would be turned into a fishing spot.
Some of Ezekiel's prophecy was fulfilled a few months later by Nebuchadnezzar, whose army attacked coastal Tyre around 587 BC. But a lot of the fulfillment was carried out by Alexander the Great nearly 300 years later, when the Macedonian army tore coastal-Tyre to pieces and then used the materials to build a causeway out to the island. The Greek army slaughtered the people of island Tyre, and reduced the city to rubble. The sea eventually claimed the original city (the modern city of Tyre is not the same city).
The people who originally read Ezekiel's prophecy never got to see its fulfillment. But we know about it, because we have the writings of ancient historians like Herodotus and Flavius Josephus. And that should make us even more confident of the divine origin of the Bible.