Judges 11:39

And it came to pass at the end of two months that she returned unto her father, who did with her according to his vow which he had vowed, by consecrating her to the service of the Lord, Exodus 13:12; Numbers 18:15, as one of the women serving at the door of the Tabernacle, Exodus 38:8; 1 Samuel 2:22; and she knew no man, the vow of her father denied her the married estate, and she had agreed to that vow. And it was a custom in Israel