The people of Joseph replied, "The hill country is not enough for us, and all the Canaanites who live in the plain have iron chariots, both those of Beth Shan and its settlements and those in the Valley of Jezreel." Joshua 17:16
What a contrast.
When Caleb was offered Hebron, he knew God would clear the way for him. He wasn't intimidated by the giants and their fortified cities. Yet the descendants of Joseph, who were quite numerous, could only see the iron chariots owned by the Canaanites. They lacked the faith that God would keep His promise. Consequently, the Canaanites were never fully driven out of the land.
Lord, I confess that too often I am concerned about the enemy's chariots. Regardless of the many promises You have kept, my doubts allow the enemy to remain. Give me the courage to drive him out completely. Give me the faith of Caleb, who could only see You and Your plan. No fortress is too big for You.