TSK · Deuteronomy 19:9

For if you carefully observe all of these commandments I am giving you and love the LORD your God, live according to his standards, and remain loyal to him,

So they selected Kedesh in Galilee in the hill country of Naphtali, Shechem in the hill country of Ephraim, and Kiriath Arba(that is, Hebron) in the hill country of Judah.