In sharp contrast to the contemporary definition of faith, biblical faith is not an irrational “leap in the dark.” It is not a mystical encounter with the “wholly other” or the “ground of being.” Nor is it optimism, psychological self-hypnosis, or wishful thinking. True faith is a reasoned response to revealed truth in the Bible, and salvation results from an intelligent response, prompted by the Holy Spirit, to that truth.
John MacArthur