Judges 11:2-6

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.

Now it came about, after a while, that the sons of Ammon fought against Israel.

When the sons of Ammon fought against Israel, the elders of Gilead went to get Jephthah from the land of Tob;

and they said to Jephthah, “Come and be our leader, that we may fight against the sons of Ammon.”