Jonathan Noyes at Stand to Reason has an interesting post up this week on the subject of three kinds of doubt Christians may experience.
There is intellectual doubt: questioning the historicity of the Bible, the rationality of Christianity, and so on. There is emotional doubt, where pain, disappointment or unanswered prayers lead believers to question the goodness or existence of God. Then there is moral doubt, fueled by a failing struggle with sin. It can lead us to doubt the ability of God’s grace to transform us, and may result in inertia and despair.
It’s a worthwhile exploration of the subject, but I’d like to add one more kind of doubt to Jonathan’s list: theological doubt.