I thought about this two nights ago, although I didn’t connect the whole concept with heroism. I’ve been really challenged by this verse recently:

Answer this question: Does the God who lavishly provides you with his own presence, his Holy Spirit, working things in your lives you could never do for yourselves, does he do these things because of your strenuous moral striving or because you trust him to do them in you? Don’t these things happen among you just as they happened with Abraham? He believed God, and that act of belief was turned into a life that was right with God.

-Galations 3:5-6

I took this one from the Message, I hope you don’t mind. It gets the point across pretty clearly, anyway.