Vessels Fitted for Wrath

A vessel fitted for wrath, was a term Paul used when talking about the fact that unbelieving Israel was deservedly, but not irretrievably, in a state of missing-out on God's promised salvation, as a consequence of, not just the cause of, their stubbornness, as foreseen and predicted by prophecy. And God endured, and even used, those vessels, for His own time and purpose - to save the Gentiles, and even to save themselves, if they believe.

(Similarly to how God raised Pharaoh up, despite being worthy of judgment, in order to demonstrate His wrath on him and also His mercy on Israel.)