It's evidence of a revelation from God if you believe God exists for other good reasons there is deism for instance a belief in a God or creator of the universe without an associated holy book or revelation. Though if you have come to the rational conclusion that God must exist you may as well believe in a God that is able and willing to tell us something about himself. This revelation will be something we know about of course and will take the form of a religion of faith, the key word is faith but you can have a rational basis for it.
Come all ye faithful joyful and triumphant.