what does the bible say?
Judges 11 records Jephthah vowing that if God gave him victory over the Ammonites, he would offer whatever came out of his house first when he returned as a burnt offering (Judges 11:30–31). When Jephthah returned, his daughter came out to greet him. The text then describes his sorrow over his vow (Judges 11:35), the mourning "for her virginity" (Judges 11:38), and Jephthah fulfilling his vow (Judges 11:39). Scripture, however, doesn't describe the act itself, which has led to two interpretations.
One view holds that Jephthah literally sacrificed his daughter. This interpretation emphasizes that elsewhere in Scripture the term “burnt offering” refers to an offering that is killed and consumed with no statement that Jephthah modified or reinterpreted the vow (Leviticus 1:3–9 and 6:8–13). In this view, the narrative is a tragic example of the spiritual confusion common during the time of the judges (Judges 21:25).
The second view holds that Jephthah devoted his daughter to lifelong service to the LORD, resulting in permanent virginity. Supporters note the focus on her virginity before the sacrifice, the absence of any description of a sacrificial act, and God’s clear prohibition of human sacrifice elsewhere in Scripture (Leviticus 18:21; Deuteronomy 12:31). Under this view, Jephthah’s vow still brought great personal loss, but not the taking of innocent life.
The account in Judges 11 serves as a warning against rash vows (Numbers 30:2; Deuteronomy 23:21–23; and Ecclesiastes 5:4–6), but more important, it shows that God often uses obviously flawed people to carry out His purposes (1 Corinthians 1:27–29; 2 Corinthians 12:9).