Parallel
Judges (Alexandrinus A-text) 20:11
Rahlfs Septuagint (1935) · Berean Standard Bible
καὶ συνήχθη πᾶς ἀνὴρ Ισραηλ ἐκ τῶν πόλεων ὡς ἀνὴρ εἷς ἐρχόμενοι
So all the men of Israel gathered as one man, united against the city.