In Judges 11:30-31 Jephthah makes a very foolish vow to offer whatever comes out of the doors of his house to meet him as a burnt offering.
I don't personally believe that he intended human sacrifice, but it ends up later in v.34 that it is his daughter.
He then states in v.35 that he cannot take back his vow.
In v.39 it then states that he did to her according to the vow that he made.
Now there is disagreement as to whether he offered her as a burnt offering or devoted her to perpetual virginity.
I personally believe that he misguidedly offered her as a burnt offering, but I am curious to know what others' thoughts are on the subject.
I used to be of the opinion that Jephthah killed his daughter, but then I learned the law, and read the story more carefully.
First, it's untenable to think that God would have any part in the abomination of human sacrifice. (Yes, yes, many people will cite Abraham and Isaac here, but that actually proves my point. Isaac was NOT offered.) Second, the priest would reject Jephthah's daughter, if not for the horror that one could conceive of bringing his child to offer as a sacrifice, but because a Burnt Offering had to come from one's herds or flocks.
But let's say this was Jephthah's vow, and that God cared more that he kept his unlawful and abominable promise than he did for mercy and the sanctity of the altar and made an exception to receive the abominable practice of the worship of Molech just this once as an act of faith. (Because we all know what happened to Aaron's sons just for offering the wrong incense.) Jephthah had to bring her to the priest, and the priest had to lay his hands on her head, then kill her, skin her, cut off her head, disembowel her, wash her guts with water, cut her body into parts, and burn them all on the brazen altar. In addition, her blood would have to be sprinkled around the altar and the door of the Tabernacle.
If this were a lawful Burnt Offering, a sweet savor and acceptable unto the LORD.
The Law of the Burnt Offering opens the book of the Leviticus. Read it.
Second of all, I can't think that Jephthah was expecting to be met by his herds and flocks coming through the doors of his house.
I think that he was expecting to be met by his servants, who were his property. And I do not think that he was thinking of cutting them up and burning them on an altar either. It's just untenable, and not a faithful reading.
One thing that distinguishes the Burnt offering from the others, is that it was wholly burnt, not just parts of it. Also, like the meat and peace offerings, the Burnt Offering was not a sin offering. Many get confused because of the word 'atonement,' in the law here, but the faithful Israelite was not bringing a Burnt offering seeking forgiveness for sin.
The Burnt Offering was an act of worship and devotion. The faithful Israelite was offering a life, wholly dedicated to God, in the Burnt Offering.
I think Burnt Offering became a metonymy for one who was wholly dedicated to the work of God, as Samuel was dedicated by his mother.