Shofetim 11:9-11

Orthodox Jewish Bible

⁹ And Yiftach said unto the ziknei Gil‘ad, If ye bring me home again to fight against the Bnei Ammon, and Hashem deliver them before me, shall I be your rosh?

¹⁰ And the ziknei Gil‘ad said unto Yiftach, Hashem be witness between us, if we do not so according to thy words.

¹¹ Then Yiftach went with the ziknei Gil‘ad, and the people made him rosh and katzin over them; and Yiftach uttered all his words before Hashem in Mitzpah.