Judges 11:9-11

9Jephthah answered, “Suppose you take me back to fight the Ammonites and the LORD gives them to me—will I really be your head?” 10The elders of Gilead replied, “The LORD is our witness; we will certainly do as you say.”

11So Jephthah went with the elders of Gilead, and the people made him head and commander over them. And he repeated all his words before the LORD in Mizpah.