Christ is clear that faith is confidence that his word is what determines outcomes. The centurion, for example, is the paradigm of faith by seeing this with particular clarity. But if we don’t see Christ as determining outcomes, what do we see as doing this? An obvious candidate is the regularity or uniformity of nature. If a leper heard that Christ could heal and didn’t seek him out, he probably had the thought that one should have more confidence in the power of a disease to follow its course than in the power of an itinerant rabbi to make it vanish at his word. If the disciples were terrified on the boat before Christ woke up to challenge their faith, it probably included a firm conviction caused by their uniform experience of tempests. I know that I fear to ask Christ for healing simply because my own uniform experience of sickness or disability convinces me I shouldn’t get my hopes up.
Christ’s refrain that “your faith has healed you” means that even though he determines all outcomes whether one believes it or not, our belief that he does so connects us not just to the way things are, but directly to him. In fact, this is what connects us to him first, and in being connected to the source of life, life flows into us.
Without faith in Christ, our confidence shifts to our own predictions, which rest in an essential way on the uniformity of nature. Here, ironically, Hume’s attack on the rationality of the uniformity of nature might serve as an apologetic point in favor of faith in Christ, or at least against its alternative.