This Bible account takes us back to the period of the Judges. 1450 to 1120 BCE. Jephthah was a judge in Israel, when each man did according to his own way of thinking,, Now this doesn’t mean they were lawless or Barbaric. They had the law covenant and obeyed those requirements of a civilized nation. But they were free from Government micro management. Good common sence and fair play, keeping their word , much like America used to Be. Jephthah was faced with a foreign and formidable enemy Army. He knew he and his army were no match against the Ammonites. He should have faith that YHWH. ( The God of Israel ) can assure their victory, using a similar battle plan, that was successful before. It seems. Jephthah had faith, but needed additional assurance by making a vow to YHWH. His vow was that if indeed there was a vicyory for Israel. He would dedicate who ever came out of his house (when he got home ) that person would forfeit marriage and serve at the tent of meeting in YHWH’S sacred service. For Life.,,, His young daughter came out first, and Jephthah was crushed and realized his vow COULD NOT be reversed. Was it rash to make such a vow ? I personally can’t judge this. Vows are completely voluntary. But the Bible warns ,what you vow , pay. Do not beg off. People knew this and obeyed ( BACK THEN ) this was known ,, this was an unbreakable commitment. To GOD. Jephthah s. Daughter, realized , her Dad had to keep his word, YHWH had given. Jephthah. the victory. Now Jephthah had to send his daughter to sacred service at the sanctuary in Shiloh .She and her female friends spent 2 months together in the mountains , before leaving for Shiloh. Each year the daughters of Israel would visit her in Shiloh, 4 days.