Acceptance of evolution is not a matter of faith. Its rejection is, in my opinion, a clear indication that one understands neither science nor faith. On the other hand, the consensus of Christian saints and theologians through two millennia is that faith is a gift of God, a grace, which unbelievers have rejected. Not every believer would agree. Thomists think the elaborate structure that St. Thomas Aquinas erected is proof.
Mystics think they have had direct encounters with the deity.
And so on. We have left the world of logical discourse and provable assertions at this point. It is a commonplace that every Christian doctrine, without exception, constitutes a paradox and, down at its bottom, remains a mystery. To oversimplify a bit, even if they found the Ark on Mount Ararat, it wouldn't prove that the myth of a world-wide flood was true, and it certainly would not prove or disprove the claims of the Christian faith, or any other faith. And if, as seems likely, we some day eliminate all doubt that a Big Bang happened, and the whole universe began at a definable point in time and space, the fact that the Christian Bible sort of agrees would still be only an interesting parallel.