Numbers 21:1-3New English Translation (NET Bible)
Victory at Hormah
21 When the Canaanite king of Arad who lived in the Negev heard that Israel was approaching along the road to Atharim, he fought against Israel and took some of them prisoner.
2 So Israel made a vow to the Lord and said, “If you will indeed deliver this people into our hand, then we 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. So the name of the place was called Hormah.