https://www.christianity.com/wiki/people/who-was-jephthah-story-of-jephthahs-daughter.html
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Jephthah was a leader in Israel during the time of the Judges. He’s best known for winning a decisive battle against an invading Ammonite army—and for a foolish oath that cost his innocent daughter her life.
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It seems that when he murdered his daughter, Jephthah also ended his family line. As one theologian explained:
“He not only sacrifice[d] his daughter but also himself. In the ancient world people were thought to live on through their children. Accordingly, the worst fate one could experience was to have one’s ‘seed’ cut off and ‘name’ destroyed.”
Interestingly, similar to what’s described in Judges 11:40, some Jewish women today still ritually mourn Jephthah’s daughter during the winter solstice—the traditional date ascribed to the little girl’s death.
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