I found this as the profile of a friend of mine, and have copied it and pasted it exactly as it appears there, because I think it makes an excellent point: 

Oswald Chambers has said that we dont truly own our faith unless we have struggled over it in some form. Belief is not pure acceptance. God desires interaction and He revels in our working through the process of believing Him. He wrestled with Jacob and even let him win.

So dont be afraid to question. Even doubt is a legitimate step in the process of faith. God welcomes the serious questioner. It means we care enough to persist in finding the answers we need. The person who is threatened by questions has much too small of an understanding of God.

I like that last line.  Now, there are those that would say that it is then better for those who do not believe not to see confirmed Christians question their own faiths; for the unbeliever’s faith, in its infancy, is fragile and threatened by said questioning.  I disagree.  I feel the doubting Christian can be a great example to the unbeliever, for he exposes a truth:  we are only human, and our faith is human faith.  It is weak, as we are weak.  Weakness is real.  And that further exposes the truth:  to understand what Christianity is, do not look to a Christian for your example.  He will always fail.  No, my friends.  Our purpose on this earth is not to draw others to Christianity by being perfect Christians.  No; we are instead to invite others to see the true Model of Christianity — Christ.  Don’t live your faith trying to show others how to be a Christian.  Live your life pointing to the One by whom you should model your own faith.  To introduce a fellow human being to Christianity, do not introduce him to the mirror — most of us are as wretched as cheap fun-house mirrors, distorting His image; and even the best, most expensive mirror is still merely a reflection — instead, introduce him to the Reason for Christianity:  Jesus.

Funny, too, that the best example of a Christian wasn’t even a Christian himself, but a Jew . . .