Parallel
Judges 20:25
Brenton's English Septuagint · Berean Standard Bible
And the children of Benjamin went forth to meet them from Gabaa on the second day, and destroyed of the children of Israel yet further eighteen thousand men down to the ground: all these drew sword.
That same day the Benjamites came out against them from Gibeah and cut down another 18,000 Israelites, all of them armed with swords.