Doubt is not unbelief. But it can become unbelief. That basic principle should guide our reflections on this important issue. Doubt is natural within faith. It comes about because of our human weakness and frailty. We lack the confidence to trust fully in God and long for certainty in all matters of faith. But absolute certainty is hard to come by. You can be sure that 2 + 2 = 4, but is that going to change your life? Is that going to give you a reason to live and hope in the face of death? And it isn’t just Christians …
Dr. Alister McGrath is Professor of Theology, Ministry and Education at King’s College London.