Joshua 14:15
And the name of Hebron before was Kirjath-arba; which Arba was a great man among the Anakims. And the land had rest from war. And the name of Hebron before was Kirjath-arba; which Arba was a great man among the Anakims. And the land had rest from war.
Hebron was formerly called Kirjath-arba, meaning the city of Arba. Arba was a great man among the Anakim, and the father of Anak. Hebron was later called Mamre, and it became Caleb's possession.
Caleb took Hebron and drove out the sons of Anak, after which the land had rest from war. God preserved Caleb and enabled him by faith to conquer the stronghold he had chosen.