Judges 11:40

such that, after each year passes, the daughters of Israel convene as one, and they lament the daughter of Jephthah, the Gileadite, for four days

Other versions

King James Version

That the daughters of Israel went yearly to lament the daughter of Jephthah the Gileadite four days in a year.

English Standard Version

that the daughters of Israel went year by year to lament the daughter of Jephthah the Gileadite four days in the year.

New International Version

that each year the young women of Israel go out for four days to commemorate the daughter of Jephthah the Gileadite.