And...

this is something I read from Purpose Driven Life that really encouraged me as well. I think it's a good reminder of how God uses his people:

The great missionary Hudson Taylor said, "All God's giants were weak people." Moses' weakness was his temper. It caused him to murder an Egyptoan, strike the rock he was supposed to speak to, and to break the tablets of the Ten Commandments. Yet God transformed Moses into "the humblest man on earth."
Gideon's weakness was low self-esteem and deep insecurities, but God stransformed him into a "mighty man of valor". Abraham's weakness was fear. Not once, but twice, he claimed his wife was his sister to protect imself. But God transformed Abraham into "the father of those who have faith." Impulsive, weak-willed Peter became a "rock," the adulterer David became "a man after my own heart" and John, one of the arrogant "Sons of Thunder," became the "Apostle of Love." The list could go on and on "It would take too long to recount the stories of the faith of...Barak, Samson, Jephtah, David, Samuel, and all the prophets...their weakness was turned to strength."(Hewbrews 11:32-34) God specializes in turning weaknesses into strengths.

I was too lazy to put all of the bible verses but there you have it. I just wanted to share :)