Reference

Judges 11:26

While Israel dwelt in Heshbon and her towns, and in Aroer and her towns, and in all the cities that be along by the coasts of Arnon, three hundred years? why therefore did ye not recover them within that time?
24

Wilt not thou possess that which Chemosh thy god giveth thee to possess? So whomsoever the Lord our God shall drive out from before us, them will we possess.

25

And now art thou any thing better than Balak the son of Zippor, king of Moab? did he ever strive against Israel, or did he ever fight against them,

26

While Israel dwelt in Heshbon and her towns, and in Aroer and her towns, and in all the cities that be along by the coasts of Arnon, three hundred years? why therefore did ye not recover them within that time?

27

Wherefore I have not sinned against thee, but thou doest me wrong to war against me: the Lord the Judge be judge this day between the children of Israel and the children of Ammon.

28

Howbeit the king of the children of Ammon hearkened not unto the words of Jephthah which he sent him.

Counter-Arguments

The strongest case that this verse does not belong in this theme.

Time-Bound Fulfillment

The verse refers to a past historical period of 300 years during which certain cities were occupied, not a prophecy with a defined duration for its fulfillment. It questions why a recovery did not happen within that time, rather than setting a time for a future event to occur.