Numbers 21:1-3
And when king Arad the Canaanite, which dwelled in the south, heard tell that Israel came by the way of the spies; then he fought against Israel, and took some of them prisoners.
Torrey's Topical Textbook—AKJV

Numbers 33:40
And king Arad the Canaanite, which dwelled in the south in the land of Canaan, heard of the coming of the children of Israel.
Torrey's Topical Textbook—AKJV