How do we know if the Bible is really true?
Here's the answer:
The Bible is true because it's God's Word. God's Word has been proven true again and again.
We know the Bible is true for several reasons. First, other historical evidence agrees with the Bible that its stories really did happen and its people really did live. The Bible's stories and teachings have never changed either. Its words have stayed the same ever since it was written many hundreds of years ago! Mark 13:31 says, "Heaven and earth will pass away, but my words will never pass away."
Second, the Bible proves itself to be true. The Bible predicted that things would happen long before they did, and all of these things (called prophecies) really did happen. The Bible was written by over 40 different people, but God gave them the words to say in order to make it all tell the same story about Him and about His love for us. Many prophecies in Isaiah told people about Jesus hundreds of years before He came to the earth.
Third, the Bible changes people's lives. It has a special power from God to reveal God's plans for us. It tells how God sent His Son Jesus to die for our sins and to set us free from our sins if we trust in Jesus. The Bible has the power to heal our hearts, make us better people, give us peace with God, and to give us a very important reason to live. Just reading the Bible can make us feel like we finally understand the answers to our questions; God uses it to show us what He wants to teach us. When we read it, God can open our hearts and eyes to help us believe that the Bible is really true.
"Do your best to present yourself to God as one approved, a workman who does not need to be ashamed and who correctly handles the word of truth [the Bible]" (2 Timothy 2:15).
"For the word of God [the Bible] is living and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart" (Hebrews 4:12).