Thinking deeply about important questions is to wrestle with them and compare the possible solutions, trying to decide what is true. Although doubt has perhaps a bad reputation within Christian circles, is not at all condemned in the Bible. There are plenty of people with whom Jesus himself interacted who expressed their doubts, and Jesus treated them encouragingly. So I don’t think God disapproves of the fact that we might question what is the basis for our faith.
In fact, I think developing a deep conviction about our faith calls upon us to examine it in critically and ask ourselves, “Is it reasonable to think this?” “Is there evidence for these claims?” “Why do we accept these kinds of beliefs?” I think Christianity stands up very well to that kind of intellectual questioning. —Ian Hutchinson (from, Can a Scientist Believe in Miracles?)