3 And Jehovah listened to the voice of Israel, and delivered up the Canaanites; and they utterly destroyed them, and their cities. And they called the name of the place Hormah.

Matthew Henry's Commentary on Numbers 21:3

Commentary on Numbers 21:1-3

(Read Numbers 21:1-3)

Before the people began their march round the country of Edom, the king of Arad, a Canaanite, who inhabited the southern part of the country, attacked them in the wilderness, and took some prisoners. This was to lead the Israelites to look more thoroughly to the Lord.