Good response to the guy’s tagline. Without the Bible we’d just have a bunch of opinions, it’d be hard to even know God loved the world, and we would not know how to get out of paying for our own sin. Job wished his enemy would have written a book, so he’d know what his enemy thought. I’m thankful God sent us a book.
That is exactly what the Reformation brought us as is evidenced by the 30,000 or so non-Catholic denominations, each with a differing opinion on what the Bible really says.
Besides, God gave Moses a book and that obviously wasn't enough.