Whenever faith in the Bible is required before Jesus can be trusted, the Bible becomes an idol. God's creation is being elevated above the Creator. Scripture, rather than Christ, becomes the mediator between God and man. I doubt that any of them intend to make the Bible an idol. Neither do I believe that first century Jews ever intended to make the Hebrew Bible an idol.
Good intentions are no excuse for bad actions.
When they stand before God they will still be without excuse. The text begins with a quiz which is supposed to help people evaluate their personal relationship with God. I believe the Bible, God's Word is our guide to salvation and eternal life. The bible tells how to have eternal life. Then the text quotes other scriptures.