Jonah and the Whale

No, no, no, no my friends. It is not Jonah and the Whale. The story is about Jonah and God. The whale takes up 2 verses out of 4 chapters. Dr. David Kemp, my college Bible teacher made sure we learned that. I think we Christians like to have our two verses though. We like to pick out things from the Bible and make them the whole Bible. We like to take little themes and make them big.
But what are the big themes in the Bible. The Bible is a story afterall and stories have to have main themes. What are those in the Bible (I have my thoughts, but I want to hear from you guys first).

Asking for Support

I have always wanted to be like Hudson Taylor who trusted God for every penny and never asked others for a penny. As a missionary, you pretty much start out your career asking for money full time by presenting your ministry. So now that we are here, if we lack money, do we ask men or God? I was talking to a friend about this and said that I did not think that I had the faith to just trust God as Taylor did. He was in situations where he gave away his last coin. I have never been in a situation like that. God has always provided beforehand for me.
So the question I pose to you all is: at what point do you ask others for help, or should that point never happen because we are just supposed to trust God?