Faith, trust, confidence, and belief form a continuum by evidential weight. [definitional]
To cut through the detail, I wish to propose a continuum of words connoting belief based on the degree to which they rest on evidence of the senses. Faith requires no evidence; trust is an expectation based on inconclusive evidence, is tolerant of uncertainty or risk; confidence is a strong conviction based on substantial evidence or logical deduction. These are all subjective attitudes. … Belief is a feeling that a person or thing will not fail in performance. Feeling varies inversely with evidence or proof. Thus faith is an emotionally charged, unquestioning acceptance.
DEFINE: Distinguishes faith (no evidence), trust (inconclusive evidence), confidence (substantial evidence), and belief (an inverse-of-evidence feeling).
XREF: Connects to epistemology and decision theory frameworks distinguishing certainty from justified belief.
Diego Gambetta, Trust - Making and Breaking…, loc. 2409