Judges 21:19

A feast — Probably it was the feast of tabernacles, which they celebrated with more than ordinary joy. And that feast was the only season, at which the Jewish virgins were allowed to dance. But even this was not mixed dancing. No men danced with these daughters of Shiloh. Nor did the married women so forget their gravity, as to join with them. However their dancing thus in public, made them an easy prey: whence Bishop Hall observes, "The ambushes of evil spirits carry away many souls from dancing to a fearful desolation."