Caleb refused to be discouraged. As a result of his faithfulness in bringing back a positive report Moses promised him a mountainous area near Hebron. Because of the negative recommendation of the other ten spies Caleb with all the others was sentenced to 'forty years hard labour' in the desert. But there was no hint that he was discouraged by that. Neither Caleb nor we are exempt from that rule.
Every leader has to find a desert somewhere for retreat and reflection and renewal.
I ask Lord, for some of this toughness, even in the worst adversities. Now faith is the assurance of things hoped for, the conviction of things not seen. Belief about God is necessary before we can have faith in him. So God graciously reveals himself to us in nature, history, the prophets, the redeemed community, and supremely in Jesus. Then we begin to nurture and exercise our faith to make it grow.