New Defender's Study Bible Notes
21:3 delivered up the Canaanites. A large tribe of Canaanites living in Arad, in the southern reaches of the promised land, were the first to be encountered by the Israelites as they began the wars of conquest. The attack by the Canaanites was unprovoked, and resulted in their defeat by the Israelites and the destruction of their cities. They next would have to face the Amorites and Moabites as they were trying to bypass the land of Edom.