In your opinion what causes christians to believe in Jesus

[John 6IX Breezy]

Do you think doubt and faith are compatible?

Yes, I think doubt is integral to faith. I don't see faith as the absence of doubt but rather doubt as the context in which faith occurs. It almost doesn't make sense to have faith in the absence of doubt.

This is because faith isn't blind belief, it is trust. And trust requires a context where you have good reasons to trust, but not enough to achieve certainty. For example, trusting a friend: you've likely already built rapport with that person and have enough evidence to take them at their word, and yet trust is always required precisely because there is always uncertainty. They may intentionally betray you at any point and for any reason.