36 And she said unto him, My father, if you have opened your mouth unto the LORD, do to me according to that which has proceeded out of your mouth; since the LORD has taken vengeance for you of your enemies, even of the children of Ammon.
37 And she said unto her father, Let this thing be done for me: let me alone two months, that I may go up and down upon the mountains, and lament my virginity, I and my companions.
38 And he said, Go. And he sent her away for two months: and she went with her companions, and lamented her virginity upon the mountains.
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: and she knew no man. And it was a custom in Israel,
40 That the daughters of Israel went yearly to lament the daughter of Jephthah the Gileadite four days in a year.