Jephthah

Jephthah was the son of Gilead by a prostitute and was driven out by his legitimate half-brothers who refused to share the inheritance. He fled to the land of Tob and gathered fighters around him, becoming a capable warrior. When the Ammonites threatened Gilead, the very elders who had expelled him begged him to return as their commander and promised him leadership if he won. He negotiated the terms formally and agreed.

Before the battle, Jephthah made a vow: if God gave him victory, he would sacrifice to the LORD whatever came out of his house first to meet him. He won. His daughter came out first, dancing with tambourines — she was his only child. He tore his clothes but kept his vow; she asked only for two months to mourn her virginity in the mountains. The episode stands near the dark center of the judges' decline narrative, where a pattern of religious compromise and moral drift reaches a new low. Jephthah judged Israel six years and died. He is nonetheless named in Hebrews 11, a testimony that God works through deeply flawed instruments.