Christians believe the Bible is God’s Word because Jesus believed it. He didn’t simply believe the Bible but His life was saturated with it. If we believe he was who he said he was, then we must accept the entire Bible as God’s word. We can’t take on his Lordship and not have the same heart for Scripture that Jesus had. I believe in the bible b/c I believe in Jesus and I believe in Jesus b/c I believe in the bible. Isn’t that circular reasoning? Yes. So we must 1st start with seeing if the biblical accounts of Jesus are reliable.