Caleb had been the representative of the tribe of Judah, selected as one of the twelve spies when they were first approaching the land of Canaan (Numbers 13:6). Joshua was the spy representing the tribe of Ephraim (Numbers 13:8). Joshua and Caleb were the only ones who wanted to take the land, in spite of the giants there, and consequently they were the only ones over twenty years old at that time who were allowed to live long enough to enter the promised land. Caleb was still courageous and confident in the Lord, willing to fight the giants still remaining in the land (Joshua 14:12).

Source:

KJV Defenders Study Bible, by Dr. Henry Morris, Ph.D.
Publisher: Thomas Nelson
Language: English
DEF 10 ISBN 0-529-10444-x
DEF 10-1 ISBN 0-529-10445-8