Heroes in our stories today are usually the strongest, the smartest, or the most beautiful people who conquer evil by overpowering it in some way. Even if they don't start out that way, a crucial part of their story is usually them preparing for battle by getting stronger. They know that everything is up to them.
While these stories can be inspiring and get at certain truths, they tend to miss the mark in a big way for Christians: it is in our weakness that we are strong. This is a paradox that troubles and confuses us in deep places that have been unfortunately formed by our culture. We grow up believing that we have to be strong and be the best to bring anything to the table. And when we decide to follow Christ, we bring these beliefs into our discipleship relationship with him.