Contradiction with 1 Samuel 11:8
Judges 20:47 mentions 600 men fled to the rock of Rimmon, while 1 Samuel 11:8 references a different situation with all of Israel's people showing unification and strength.
1 Samuel 11:8: And when he numbered them in Bezek, the children of Israel were three hundred thousand, and the men of Judah thirty thousand.
Contradiction with Judges 1:21
The account of Judges 1:21 reveals that the Benjamites did not drive out the Jebusites, suggesting weakness or failure, in contrast to the survival of 600 men who fled successfully.
Judges 1:21: And the children of Benjamin did not drive out the Jebusites that inhabited Jerusalem; but the Jebusites dwell with the children of Benjamin in Jerusalem unto this day.
Contradiction with Numbers 1:26-27
Numbers 1:26-27 lists the total number of Benjamite warriors as much higher than 600, contradicting the small remnant of 600 who survived in Judges 20:47.
Numbers 1:26-27: Of the children of Judah, by their generations, after their families, by the house of their fathers, according to the number of the names, from twenty years old and upward, all that were able to go forth to war;
Contradiction with Joshua 19:49-51
Joshua 19:49-51 discusses the completion of the distribution of land, showing unity, whereas Judges 20:47 reflects division and escape.
Joshua 19:49-51: When they had made an end of dividing the land for inheritance by their coasts, the children of Israel gave an inheritance to Joshua the son of Nun among them: