Judges 20:39

the men of Israel should turn in battle. Now Benjamin had begun to strike and kill about thirty men of Israel. They said, “Surely they are defeated before us, as in the first battle.”

and then the Israelites would counterattack.

The Benjamites had begun to inflict casualties on the Israelites (about thirty), and they said, “We are defeating them as in the first battle.”

the men of Israel would return to the battle. When Benjamin had begun to strike them down, killing about thirty men of Israel, they said, “They’re defeated before us, just as they were in the first battle.”

And the men of Israel turned in the battle, and Benjamin began to inflict casualties on about thirty men of Israel because they thought, “They will be completely defeated before us as in the first battle.”

And when the men of Israel retired in the battle, Benjamin began to smite and kill of the men of Israel about thirty persons: for they said, Surely they are smitten down before us, as in the first battle.