Two things are of note in this rising theme. First, that God works "by the power working in us..." It is not out of the realm of possibility that God will intervene supernaturally, but more often than not, he works through broken humans like you and like me. Jesus doesn't "poof" up something to eat, but works through the little boy who Andrew found with five loaves and two fish (not two loaves and five fish as the class cross of the VTS class of 2006 might have you believe).
Secondly, that he uses to "accomplish abundantly far more than we can ask or imagine." "What good is this among so many," Andrew wondered aloud. Well, if you'll just give him a moment, God's gonna blow your socks off. So much is created that a) everyone of the group of 5000+ is stuffed silly and b) more is taken up than they started with.
God's waiting for you to offer whatever it is you have to him. Is it musical talent? Is it public speaking skill? Is it the ability to swing a hammer? Is it time? Or is it money? Whatever you've got, God'll use it through you to "accomplish abuntantly far more then you can ask or imagine."