then it will be that whatever comes out of the doors of my house to meet me, when I return in peace from the people of Ammon, shall surely be the LORD's, and I will offer it up as a burnt offering."
Judges 11:31
Surrounding context
11:30 And Jephthah made a vow to the LORD, and said, "If You will indeed deliver the people of Ammon into my hands,
11:31 then it will be that whatever comes out of the doors of my house to meet me, when I return in peace from the people of Ammon, shall surely be the LORD's, and I will offer it up as a burnt offering."
11:32 So Jephthah advanced toward the people of Ammon to fight against them, and the LORD delivered them into his hands.