Those are good questions, that honest seekers ask. Never be afraid to ask questions about the foundation of your faith. The credibility of the Bible is the foundation of the Christian faith. The saving truth we believe about God we learn from the Bible. If the Bible is not a credible book, we would not have a firm foundation for our faith nor for future generations.
Many people have a high level of trust and never question the Bible.
If this bird crashes on takeoff, I'll be sitting in the middle of the mother of all fireballs. I don't take for granted the competency of the pilots and the mechanical integrity of the jet. I'm praying some tires don't blow out and catch fire, or that an engine compressor blade doesn't fail. I pray that the engines don't ingest a flock of sea gulls or that a thrust reverser doesn't malfunction at the moment of lift off. Some of you believe the Bible because I said it's believable.