faith and doubt

Faith and doubt are often treated as opposites, but they work together in most human experience.

Faith is belief or trust, especially without conclusive proof—in a deity, a person, an outcome: I have faith it will work out.

Doubt is uncertainty or questioning: I doubt he's telling the truth.

Religious traditions treat faith as a virtue and doubt as a challenge to it, yet many believers describe doubt as integral to deepening faith.

Faith and doubt as a phrase usually appears in theological or philosophical discussions about how conviction coexists with uncertainty.