Judges 11:1-5

The leaders of the Gilead clan decided to ask a brave warrior named Jephthah son of Gilead to lead the attack against the Ammonites. Even though Jephthah belonged to the Gilead clan, he had earlier been forced to leave the region where they had lived. Jephthah was the son of a prostitute, but his half brothers were the sons of his father's wife. One day his half brothers told him, “You don't really belong to our family, so you can't have any of the family property.” Then they forced Jephthah to leave home. Jephthah went to the country of Tob, where he was joined by a number of men who would do anything for money. So the leaders of Gilead went to Jephthah and said