Judges / Question
Jephthah vowed that if God gave him victory, whatever came out of the doors of his house to meet him on his return would be the LORD’s, and he would offer it up as a burnt offering (Judges 11:30–31). When he returned, his only child, his daughter, came out to meet him, and the narrative describes him carrying out his vow after she mourned her virginity (Judges 11:34–40).
In Judges 11:29–33, the Spirit of Yahweh comes on Jephthah as he moves through key Israelite areas and then toward the Ammonites. Along the way, Jephthah makes a conditional vow: if Yahweh gives victory, then whatever comes out from his house to meet him on his safe return will belong to Yahweh, and Jephthah will offer it as a burnt offering. This scene follows Jephthah’s rise as a military leader and his attempt to resolve the conflict with Ammon through negotiation and a historical argument about land rights (earlier in Judges 11). When diplomacy fails, the story turns to battle.
The passage presents a tight sequence: God’s Spirit comes on Jephthah, Jephthah moves through key Israelite regions toward the battlefront, Jephthah makes a conditional vow to Yahweh, and then Yahweh grants victory over Ammon (Judg 11:29–33).
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with Judges 11:30-31, then read the surrounding section so the answer stays connected to the passage's flow.
30Jephthah vowed a vow to Yahweh, and said, If you will indeed deliver the children of Ammon into my hand,
31then it shall be, that whatever comes forth from the doors of my house to meet me, when I return in peace from the children of Ammon, it shall be Yahweh`s, and I will offer it up for a burnt offering.