Numbers 21:1-3

When the Canaanite, the king of Arad, who lived in the Negev (the South country) heard that Israel was coming by the way of Atharim [the route traveled by the spies sent out by Moses], he fought against Israel and took some of them captive. So Israel made a vow to the LORD, and said, “If You will indeed hand over these people to me, then I will utterly destroy their cities.” The LORD heard the voice of Israel and handed over the Canaanites; then they utterly destroyed them and their cities. So the name of the place was called Hormah (dedicate to destruction).