If the Bible were only a human book — in other words, a book that was written by men who were only writing down their own ideas about the world — then you’d be right to question what it says.
But the Bible isn’t just another human book! The Bible is God’s Word, and God’s Spirit guided those who wrote it. That makes all the difference because it means we can trust what it says. As the Apostle Peter wrote, “Prophecy never had its origin in the will of man, but men spoke from God as they were carried along by the Holy Spirit” (2 Peter 1:21).
I realize you may not believe this right now, but my prayer is that you will begin reading the Bible for yourself, sincerely asking God to speak to you through its pages. (I suggest you begin reading in one of the Gospels, such as John.) Don’t get bogged down in things you don’t understand right now; instead, focus on what you can understand. Most of all, ask yourself who Jesus Christ really was, and what difference He can make in your life.
You still may have questions about the Bible — but does that mean there aren’t any answers? No, of course not. Scholars have dealt with them for centuries; your local Christian bookstore can help you. But again, don’t get bogged down in them. Instead, thank God that He loves you, and sent His Son into the world to save you as you open your heart and life to Him.