King David from Israels history. He wasn't religious but hated hypocrites, killed a man to get his wife but knew when he was wrong and how to ask for forgiveness, ran away from fights but was a mighty warrior when needed, made a sorry race great, wrote poems and songs, had ginger hair, married MULTIPLE times and did SO any things wrong, but he is still honoured and respected by hundreds of thousands of people across the world because above all, he was HONEST and LOVED and it showed in everything he did.
Ooh AND he was the youngest of 7 sons and was raised to be a shepherd, his brothers didn't give him any respect but he still had faith that all things are possible.
He gives hope to people who get things spectacularly wrong because he shows that if you pick yourself up and honestly and humbly try again, you can do great things.