Charles Ellicott Commentary Judges 19:2

"And his concubine played the harlot against him, and went away from him unto her father`s house to Beth-lehem-judah, and was there the space of four months." — Judges 19:2 (ASV)

Four whole months. —Literally, days, four months, which some interpret to mean “a year (see Note on Judges 17:10) and four months.” The incident has, however, little bearing on the general story.