[29] Then the Spirit of the LORD came upon Jephthah, and he passed over Gilead, and Manasseh, and passed over Mizpeh of Gilead, and from Mizpeh of Gilead he passed over unto the children of Ammon. [30] And Jephthah vowed a vow unto the LORD, and said, If thou shalt without fail the children of Ammon into mine hands,