Numbers 21:1-3

When the Canaanite, the king of Arad, who lived in the Negev, heard that Israel was coming by the way of Atharim, then he fought against Israel and took some of them captive. So Israel made a vow to the LORD and said, “If You will indeed deliver this people into my hand, then I will utterly destroy their cities.” The LORD heard the voice of Israel and delivered up the Canaanites; then they utterly destroyed them and their cities. Thus the name of the place was called Hormah.