It isn't... The purported value of faith is a throw-back to the ignorant old days, when ancient Greeks and fourth century Romans embraced the erroneous notion that personal mental experiences are capable of influencing the nature of the real physical world. Sadly, the early Catholics and their eventual Protestant spin-offs have shamelessly promoted Aristotle's unsubstantiated philosophy for sixteen centuries and, to this day, humanity is still divided between those who embrace obsolete philosophical nonsense and those who prefer the verified factual knowledge of modern physical science. It's been 377 years since Rene Descartes ignited the Enlightenment by asserting that objective physical matter exists independently of humanity's mental processes and speculated that subjective mental experiences are created within each person's mind by their own living brain. ...an hypothesis that wouldn't be conclusively proved until 1929 -- after the electronic vacuum tube, differential amplifier, and EEG machine were invented. At the beginning of the 21st century, it's clearly obvious that physical science greatly benefits our modern civilization, and that Christianity is a useless and persistent plague of contagious willful ignorance.