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: and she knew no man. And it was a custom in Israel,
Berean Study Bible (BSB) - Judges 11:39 >After two months, she returned to her father, and he did to her as he had vowed. And she had never had relations with a man. So it has become a custom in Israel