Judges 11:30 in the King James Version
And Jephthah vowed a vow unto the LORD, and said, If thou shalt without fail deliver the children of Ammon into mine hands,
Context
29 Then the LORD’s Spirit came on Jephthah, and he passed over Gilead and Manasseh, and passed over Mizpah of Gilead, and from Mizpah of Gilead he passed over to the children of Ammon.
30 Jephthah vowed a vow to the LORD, and said, “If you will indeed deliver the children of Ammon into my hand,
31 then it shall be, that whatever comes out of the doors of my house to meet me when I return in peace from the children of Ammon, it shall be the LORD’s, and I will offer it up for a burnt offering.”