when i am weak...

When i am weak then i am strong
When i am broken then You can heal
When i can't walk then You can carry
With less of me there is more of You
Only when i don't have enough can you be more than enough
How can i learn to trust you if i never need you
How can you show me you're faithful if i don't need faith
Why would i want to know You if i have all i want and need in me