Such was the case with Thomas. Thomas was a good Jew. In that room with the other disciples Thomas declares that his heart, allegiance, and life belongs to Jesus. He uses the most lofty words of man to declare Christ to be supreme. His doubt gave way to faith.
Healthy questions keep faith dynamic.
Unless we start with doubts we cannot have a deep-rooted faith. One who believes lightly and unthinkingly has not much of a belief. He who has a faith which is not to be shaken has won it through blood and tears-has worked his way from doubt to truth as one who reaches a clearing through a thicket of brambles and thorns. Doubt sometimes drives us to think more deeply. Thomas proclaimed Jesus as the way, the truth, and the life.