Charles Ellicott Commentary Judges 21:15

"And the people repented them for Benjamin, because that Jehovah had made a breach in the tribes of Israel." — Judges 21:15 (ASV)

The Lord had made a breach. —The breach (perets, 1 Kings 11:24) had been caused by their own headstrong fury and unreasoning passion, even though it had been in a righteous cause; but in the Hebrew conception the results even of man’s sin and follies are referred to Jehovah as overruled by Him (Amos 3:6; Isaiah 45:7). It was therefore needless, and not quite honest of St. Jerome in the Vulgate, to omit “ the Lord.”