It happened at the end of two months, that she returned to her father, who did with her according to his vow which he had vowed: and she was a virgin. It was a custom in Israel,
b.    God specifically forbade human sacrifice in the Mosaic Law and called it an abomination in His sight (Leviticus 18:21; Leviticus 20:2-5; Deuteronomy 12:31; Deuteronomy 18:10). That a judge in Israel such as Jephthah would have practiced it is unthinkable.