C. F. Keil and Franz Delitzsch on Joshua 20:7

Jos 20:7

In the land on this side (viz., Canaan) they sanctified the following cities. In the north, Kedesh (see at Jos 12:22), in Galil, on the mountains of Naphtali. Galil (a circle) was a district in the northern part of the subsequent province of Galilee; it is called הגּוים גּליל, circle of the heathen, in Isa 9:1, because an unusually large number of heathen or Gentiles were living there. In the centre of the land, Shechem, upon the mountains of Ephraim (see at Jos 17:7). And in the south, Kirjath-arba, i.e., Hebron, upon the mountains of Judah (see at Jos 10:3).