Judges 11:1 Jephthah was born of a hooker.
Ah, another prime candidate to be one of God's Biblical heroes.
Judges 11:30-39 Jephthah vowed to God: Give me victory and I will give to You, by burnt offering, whatever comes first through my door.
Jephthah murdered 20 cities for God. (Always in control) God apparently arranged for Jephthah’s daughter, his only child, to come first through his door, who was happy to see her father. Jephthah gave his little girl two months to “mourn her virginity” because she couldn’t bear children before she had to die. He then sacrificed his only child, a virgin daughter by burnt offering to your Biblical God, as was the custom in Israel. KJV
Here are some good links on Jephthah's daughter: