Straight from Judges chapter 11...
In the "Living Word", it comes to pass that the people of Ammon were warring with the people of Israel. Elders are sent from Gilead to the land of Tob to procure the courageous man called Jephthah for battle against Ammon. He agrees to help them, although they had kicked him out of his hometown years ago because his mother was a whore, so long as he gets to be their leader. They agree.
Apparently, Jephthah decides to make a deal with his god of love so he can be victorious in battle. What is this deal? Well, in exchange for victory, Jephthah pledges that the first to greet him out of his front door when he returns home shall be offered as a burnt offering to his god of love. Unfortunately, that means either his wife or only daughter (he has no other children) will be barbequed.
The war goes well for him and he slaughters many men (with love). He returns home, likely hoping his dog hears him approach or a slave will come to greet him but, alas, it is his only daughter who is first out his front door dancing and singing of his victory. Much like Hulk Hogan before a match, upon seeing his daughter, Jephthah tears open his shirt. "Aw, you dummy, you should have sent your mother! Now I gotta cook you! I promised our god of love." he says to his daughter (or something similar). "You promised our god of love what?! Well, give me two months to mourn my virginity (wink, wink)" she asks. Jephthah allows her two months and she wanders around the mountains "mourning" her virginity.
She does return after two months, who knows why, and Jephthah burns her alive. His god of love is pleased because he loves the smell (see Exodus and Leviticus), of all the smells of burning meat, virgin meat is probably the best.
What is the moral of this story? Fuck if I know.