When you express doubt to some believers, they respond by saying you just have to have faith.
Some believers are certain of their faith; not that they are faithful with a particular set of rituals, but that “Jesus, not Janus” is the case.
Often, it’s the very same believer expressing both ideas.
When doubt exists, certainty cannot; that’s axiomatic.
This is when we have to realize that every question before us is one where we can have countless attitudes about. This sort of person isn’t being incoherent. They simply have fine distinctions that are hard maybe for even themselves to see. For this believer, his witness to doubters will be far more honest in seeing that faith in this context isn’t about having justified beliefs. Faith here is a choice against justified doubt. That’s also axiomatic.
A doubtful believer certain that his faith is warranted is one who should admit doubters have every reason to doubt, but that the reason faith is warranted is because risking into the unknown can be validated, can be vindicated here and now; faith is vulnerability to being wrong for all the best reasons.
Instead, the often dishonest reaction to doubt isn’t this sort of faith. It’s claiming to know what others are simply too blind to see. It is supressing one’s own genuine doubt for a refusal to being vulnerable to being anything less than perfectly right in every questionable matter that this faith could apply to.