Doubts of the heart can originate from inactivity. This was the case for the Jewish people when they were on the brink of entering the promised land. Their struggle with fear led to doubt, then defiance, and finally despair. Two spies, Caleb and Joshua, provide the antithesis of caving to fear. These two men trusted that God is true to His word and so they obeyed Him. They got to reap the rewards of faithfully acting in spite of their fear by entering the promised land.