By being persistent, you're demonstrating faith. Persistence is simply another word for faith. If you didn't have faith, you'd never persist.
Men credited with all kinds of ability, talent, brains and know how, including the ability to see into the future, frequently have nothing more than the courage to keep everlastingly at what they set out to do. They have that one great quality that is worth more than all the rest put together. They simply will not give up! When a man makes up his mind to do something then it's only a matter of time. Staying with time take bulldog persistence. This seems to be the entrance examination to success - lasting success -- of any kind!