I do believe there is something we could be said to "contribute" - not to our being drawn, called, healed of blindness, and saving - but after that. We make choices everyday to either side with the world or refuse the worlds wisdom and to side with and stand firm in faith.
We may hear some wordly wisdom and begin to sink into worry, about how we don't have a huge retirement stored up. And He catches us as we start to slip in trust and we can refuse the wordly wisdom and say: no, I am commanded not to worry about these things as the gentiles do. He knows what I have need of and He is my security, not a stockpile that could be blown away in seconds on a whim of "The Marketplace."