Doubt is an inherent part of having faith. Faith, the Bible tells us, is having convictions about things which you cannot see (Hebrews 11:1). This extends to things which cannot be empirically proven through scientific method. If you can see something and prove it, there is no need for faith. Doubt therefore, is not how faith ends, but is the occasion where faith and trust begin.
But it is not only “believers” who have doubts. Studies have shown that professing atheists also have doubts about whether they are right.
CS Lewis, in his book Mere Christianity said, “When I was an atheist, I had moods in which Christianity looked terribly probable.”
A recent poll from Newman University and YouGov found that one in five British atheists and over a third of Canadian atheists agreed with the statement: “Evolutionary processes cannot explain the existence of human consciousness.” 
In his book The Reason for God, Timothy Keller challenges those who doubt to “doubt their doubts,” i.e. to consider to the faith and beliefs (the assumptions which cannot be empirically proven) that underly their doubts, and to honestly question whether they actually stand on firm ground. His conclusion is that faith is God is actually more plausible than the alternative.
This week in our Sermon Extra, Pastor Mike and I discussed the role of doubt in faith, the fact that atheists have doubts too, and what we should do with our doubts. Check it out here: