Judges 11:1-3

Now Jephthah the Gileadite was a brave warrior, but he was the son of a prostitute. Gilead was the father of Jephthah. Gilead’s wife bore him sons, and when his wife’s sons grew up, they drove Jephthah out and said to him, “You shall not have an inheritance in our father’s house, because you are the son of another woman.” Then Jephthah fled from his brothers and lived in the land of Tob; and worthless and unprincipled men gathered around Jephthah, and went out [on raids] with him.