Judges 11:1-3

Now Jephthah the Gileadite was a valiant warrior, but he was the son of a prostitute. And Gilead had fathered 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, for you are the son of another woman.”

So Jephthah fled from his brothers and lived in the land of Tob; and worthless men gathered around Jephthah, and they went wherever he did.