Faith in what?

I've recently been challenged by the idea of "faith." We so often hear of faith spoken of, as if "faith" were the religion or the god, itself. Faith in what, I ask? I remember pop singer George Michael in the 80's crooning, "I've just gotta have faith..." Catchy song. Questionable faith. (and no comments on lifestyle choices of Mr. Michael, please. This is a family blog... :-) )

For the Christian believer, faith must be in God, the one true God, and in Christ's saving work on the cross. But, do we trust in that faith, in that God, enough?
Oswald Chambers addresses just that issue, faith, in the Utmost reading for today...

Faith by its very nature must be tried, and the real trial of faith is not that we find it difficult to trust God, but that God's character has to be cleared in our own minds. Faith in its actual working out has to go through spells of unsyllabled isolation. Never confound the trial of faith with the ordinary discipline of life, much that we call the trial of faith is the inevitable result of being alive. Faith in the Bible is faith in God against everything that contradicts Him- I will remain true to God's character whatever He may do. "Though He slay me, yet I will trust Him"- this is the most sublime utterance of faith in the whole of the Bible.