C. F. Keil and Franz Delitzsch on Judges 1:26

Jdg 1:26

The man whom they had permitted to go free, went with his family into the land of the Hittites, and there built a town, to which he gave the name of his earlier abode, viz., Luz. The situation of this Luz is altogether unknown. Even the situation of the land of the Hittites cannot be more precisely determined; for we find Hittites at Hebron in the times of Abraham and Moses (Gen 23), and also upon the mountains of Palestine (Num 13:29), and at a later period on the north-east of Canaan on the borders of Syria (1Ki 10:29). That the Hittites were one of the most numerous and widespread of the tribes of the Canaanites, is evident from the fact that, in Jos 1:4, the Canaanites generally are described as Hittites.