Numbers 21:2 in the King James Version
And Israel vowed a vow unto the LORD, and said, If thou wilt indeed deliver this people into my hand, then I will utterly destroy their cities.
Context
1 The Canaanite, the king of Arad, who lived in the South, heard that Israel came by the way of Atharim. He fought against Israel, and took some of them captive.
2 Israel vowed a vow to the LORD, and said, “If you will indeed deliver this people into my hand, then I will utterly destroy their cities.”
3 The LORD listened to the voice of Israel, and delivered up the Canaanites; and they utterly destroyed them and their cities. The name of the place was called Hormah.